FMF Minerals Gallery

Calcite Postojna, Notranjska Province, Slovenia 20 x 4.7 cm "Stag-horn" Stalactite ex Alvin Schortmann ex Carl R. Bentley (Author: Don Lum)

Calcite Postojna, Notranjska Provi

Calcite Pugh Quarry (France Stone Co. Custar quarry), Custar, Wood Co., Ohio, USA 75 mm x 55 mm x 37 mm (Author: Carles Millan)

Calcite Pugh Quarry (France Stone

Calcite Pugh Quarry (France Stone Co. Custar quarry), Custar, Wood Co., Ohio, USA 75 mm x 55 mm x 37 mm (Author: Carles Millan)

Calcite Pugh Quarry (France Stone

Calcite Pugh Quarry (France Stone Co. Custar quarry), Custar, Wood Co., Ohio, USA 75 mm x 55 mm x 37 mm (Author: Carles Millan)

Calcite Pugh Quarry (France Stone

Calcite Pugh Quarry, Custar, Wood County, Ohio, USA Specimen size: 13 x 8 cm. Cristal size: 12 cm. Photo: geoalfon (Author: Jordi Fabre)

Calcite Pugh Quarry, Custar, Wood

Calcite Put in Bay Island, Erie County, Ohio, USA 4.0 x 4.7 cm. This honey-colored calcite was one of the first specimens in my collection. It was given to me as a prize at a museum meeting of students interested in the the natural sciences. (Author: crosstimber)

Calcite Put in Bay Island, Erie Co

Calcite Qale-Zari Mine, South Khorasan Province, eastern Iran Magnified view - 20.5 x 15 x 5.3 cm (Author: vhairap)

Calcite Qale-Zari Mine, South Khor

Calcite Qale-Zari Mine, South Khorasan Province, eastern Iran 20.5 x 15 x 5.3 cm (Author: vhairap)

Calcite Qale-Zari Mine, South Khor

Calcite Qale-Zari Mine, South Khorasan Province, eastern Iran Field of view: 12.5 cm (Author: vhairap)

Calcite Qale-Zari Mine, South Khor

Calcite Qaleh-Zari Mine (Ghale Zari Mine), Nehbandan, South Khorasan Province, Iran 14 * 15 cm (Author: h.abbasi)

Calcite Qaleh-Zari Mine (Ghale Zar

Calcite Qaleh-Zari Mine (Ghale Zari Mine), Nehbandan, South Khorasan Province, Iran Size: 99*107*45 mm Flaggy Calcite (Author: h.abbasi)

Calcite Qaleh-Zari Mine (Ghale Zar

Calcite Qaleh-Zari Mine (Ghale Zari Mine), Nehbandan, South Khorasan Province, Iran Specimen size: 15 * 8 cm (Author: h.abbasi)

Calcite Qaleh-Zari Mine (Ghale Zar

Calcite Rabenstein limestone mine, Chemnitz, Saxony, Germany 3 x 2,5 cm (Author: Andreas Gerstenberg)

Calcite Rabenstein limestone mine,

Calcite Rammelsbach Quarry, Palatinate, Germany 110 x 90 x 70 mm (Author: Tobi)

Calcite Rammelsbach Quarry, Palati

Calcite Remigiusberg Quarries, Rammelsbach, Altenglan, Palatinate, Rhineland-Palatinate, Germany Crystal lenght 2 cm (Author: Tobi)

Calcite Remigiusberg Quarries, Ram

Calcite Rhisnes - Namur Prov., Belgium Drawing of the 2d Crystal (photo) (Author: Roger Warin)

Calcite Rhisnes - Namur Prov., Bel

Calcite Rhisnes - Namur Prov., Belgium Twinned hexagonal dipyramid (Author: Roger Warin)

Calcite Rhisnes - Namur Prov., Bel

Calcite Rhisnes, Namur Prov., Belgium 11 cm wide Dipyramid L {88.3} (dominant) Rhombohedron {10.1} (top) (Author: Roger Warin)

Calcite Rhisnes, Namur Prov., Belg

Calcite Rhisnes, Namur Prov., Belgium parallel growth on hexagonal dipyramid (Author: Roger Warin)

Calcite Rhisnes, Namur Prov., Belg

Calcite Rhisnes, Namur Prov., Belgium 3 generations (Author: Roger Warin)

Calcite Rhisnes, Namur Prov., Belg

Calcite Rist Mine, Hiddenite, Alexander Co., North Carolina, USA 2.9 x 3.5 cm (Author: am mizunaka)

Calcite Rist Mine, Hiddenite, Alex

Calcite Rist Mine, Hiddenite, Alexander Co., North Carolina, USA 2.9 x 3.5 cm (Author: am mizunaka)

Calcite Rist Mine, Hiddenite, Alex

Calcite Rt. 13 roadcut, Chittenango Falls, Madison Co., New York 4.5 x 5.2 cm Scalenohedral calcite crystals to 1.5 cm on limestone matrix with bladed pale blue celestite. (Author: crosstimber)

Calcite Rt. 13 roadcut, Chittenang

Calcite Rüdersdorf, Brandenburg, Germany 7 x 5 cm Ex Berlin Natural History Museum. (Author: Andreas Gerstenberg)

Calcite Rüdersdorf, Brandenburg, G

Calcite San Antonio el Grande, Santa Eulalia, Aquiles Serdán, Chihuahua, Mexico 17 cm. (Author: javmex2)

Calcite San Antonio el Grande, San

Calcite San Antonio Mine, Santa Eulalia, Mun. de Aquiles Serdán, Chihuahua, Mexico 6.3 x 7.5 cm. Sharp brown scalenohedral calcite crystals to 4 cm. on a colorless massive calcite matrix. (Author: crosstimber)

Calcite San Antonio Mine, Santa Eu

Calcite Santa Eulalia District, Mun. de Aquiles Serdan, Chihuahua, Mexico 9.5 x 12.5 cm Scalenohedral calcite crystals coated with hematite with a subsequent generation of lighter-colored rhombic calcites. Fluoresces orange under SW UV. (Author: crosstimber)

Calcite Santa Eulalia District, Mu

Calcite Sarbai Mine, Kostanay Province, Kazakhstan Specimen height 55 mm, crystal is 35 mm in diameter (Author: Tobi)

Calcite Sarbai Mine, Kostanay Prov

Calcite Sarbai Mine, Kostanay Province, Kazakhstan Specimen height 55 mm, crystal is 35 mm in diameter (Author: Tobi)

Calcite Sarbai Mine, Kostanay Prov

Calcite Sauberg mine, Ehrenfriedersdorf, Erzgebirge, Saxony, Germany 5,5 x 4,5 cm The so-called "wave calcite" from the "Dölling vug", 6018 working, 6th level (found 1982 by Walther Dölling). (Author: Andreas Gerstenberg)

Calcite Sauberg mine, Ehrenfrieder

Calcite Schneeberg, Erzgebirge, Saxony, Germany. 8,5 x 3,8 cm (Author: Andreas Gerstenberg)

Calcite Schneeberg, Erzgebirge, Sa

Calcite Schneeberg, Erzgebirge, Saxony, Germany 8 x 4 cm (Author: Andreas Gerstenberg)

Calcite Schneeberg, Erzgebirge, Sa

Calcite Second Sovietskiy Mine, Dalnegorsk, Russia 5.2x2.7cm Clear and lusterous on the top half with very defined striations on the termination faces. (Author: Greg Lilly)

Calcite Second Sovietskiy Mine, Da

Calcite Seifersdorf quarry, Freiberg, Erzgebirge, Saxony, Germany. 7 x 6 cm (Author: Andreas Gerstenberg)

Calcite Seifersdorf quarry, Freibe

Calcite Seravezza, Apuan Alps, Lucca Province, Tuscany, Italy 8.52 mm Calcite " faden " (Author: Matteo_Chinellato)

Calcite Seravezza, Apuan Alps, Luc

Calcite Sgurr nan Cearcall, nr Glen Brittle, Isle of Skye, Scotland, UK 63mm x 40mm x 20mm deep Calcite crystals in ’nailhead’ habit, found on the sides of a large, otherwise empty cavity in a huge boulder. The only calcite I recall seeing at this locality. The glossy sheen is natural (etching from sea-water?). Self-collected 2011 (Author: Mike Wood)

Calcite Sgurr nan Cearcall, nr Gle

Calcite Shullsburg, Upper Mississippi Valley District, Lafayette Co., Wisconsin 9.6 x 6.8 x 5.8 cm (Author: am mizunaka)

Calcite Shullsburg, Upper Mississi

Calcite Sickenius mine, Karnes Uranium District, Karnes Co., Texas, USA Calcite crystal 45 x 37mm (Author: Paul Bordovsky)

Calcite Sickenius mine, Karnes Ura

Calcite Sickenius mine, Karnes Uranium District, Karnes Co., Texas, USA Calcite crystal 45 x 37mm 45 x 37mm in concretion as is was broken open. One of the largest calcites found in the district. (Author: Paul Bordovsky)

Calcite Sickenius mine, Karnes Ura

Calcite Sickenius mine, Karnes Uranium District, Karnes Co., Texas, USA Up to 3mm. Vug with water clear calcite scalenohedrons up to 3mm. (Author: Paul Bordovsky)

Calcite Sickenius mine, Karnes Ura

Calcite Sickenius mine, Karnes Uranium District, Karnes Co., Texas, USA Calcite crystal 45 x 37mm You can see many tiny faces where the crystal grew against the matrix. (Author: Paul Bordovsky)

Calcite Sickenius mine, Karnes Ura

Calcite Sickenius mine, Karnes Uranium District, Karnes Co., Texas, USA Calcite crystal 45 x 37mm The previous crystal detached from the vug. (Author: Paul Bordovsky)

Calcite Sickenius mine, Karnes Ura

Calcite Snake Hill (Laurel Hill), New Jersey, USA Calcite (hematite-coated). Longest crystal 1.5 cm Snake hill was an isolated igneous hill in the meadowlands of northeastern NJ. It was completely leveled by quarrying, but in the process many interesting minerals were found. It is not far from an old clay pit in Moonachie where I have taken my family to collect clay concretions. (Author: John Medici)

Calcite Snake Hill (Laurel Hill),

Calcite St Andreasberg, Hartz Mts 8 cm Kanonenspat (Author: Roger Warin)

Calcite St Andreasberg, Hartz Mts

Calcite St Andreasberg, Hartz Mts (Author: Roger Warin)

Calcite St Andreasberg, Hartz Mts

Calcite St Andreasberg, St Andreasberg District, Harz, Lower Saxony, Germany 6 x 4 cm (Author: Tobi)

Calcite St Andreasberg, St Andreas

Calcite Stank Mine, Barrow, South Western Region, Cumbria, England, UK 8.6 x 5.7 cm (Author: am mizunaka)

Calcite Stank Mine, Barrow, South

Calcite Steltenberg quarry, Hohenlimburg, Sauerland, Northrhine-Westphalia, Germany. 8 x 6,5 cm (Author: Andreas Gerstenberg)

Calcite Steltenberg quarry, Hohenl

Calcite Sweetwater Mine, Ellington, Viburnum Trend District, Reynolds Co., Missouri, USA Specimen height 95 mm (Author: Tobi)

Calcite Sweetwater Mine, Ellington

Calcite Sweetwater Mine, Missouri, USA 200 x 120 x 25 mm (Author: Tobi)

Calcite Sweetwater Mine, Missouri,

Calcite Sweetwater Mine, Missouri, USA FOV 40 mm Another closer shot of the area (Author: Tobi)

Calcite Sweetwater Mine, Missouri,

Calcite Sweetwater Mine, Missouri, USA FOV 40 mm A closer shot of the backside: white dolomite layer with many small sulfide crystals (grey = galena, golden = chalcopyrite) (Author: Tobi)

Calcite Sweetwater Mine, Missouri,

Calcite Sweetwater Mine, Missouri, USA 200 x 120 x 25 mm You can see that the backside consists of white dolomite and is covered with crystals of galena and chalcopyrite (Author: Tobi)

Calcite Sweetwater Mine, Missouri,

Calcite Sweetwater Mine, Missouri, USA 200 x 120 x 25 mm Front view of the large plate covered with calcite crystals up to 40 mm (Author: Tobi)

Calcite Sweetwater Mine, Missouri,

Calcite Sweetwater Mine, Missouri, USA 200 x 120 x 25 mm (Author: Tobi)

Calcite Sweetwater Mine, Missouri,

Calcite Sweetwater Mine, Missouri, USA Specimen width 155 mm (Author: Tobi)

Calcite Sweetwater Mine, Missouri,

Calcite Sweetwater Mine, Viburnum Trend District, Missouri, USA Specimen height 95 mm (Author: Tobi)

Calcite Sweetwater Mine, Viburnum

Calcite Taff’s Well Quarry, Taff’s Well, Cardiff, Wales, UK Calcite 6cm, collected 1981. I was pleasantly surprised to open a copy of the calcite edition of Extra Lapis and see this photo used as an example of twinning. (Author: ian jones)

Calcite Taff’s Well Quarry,

Calcite Thomas quarry, Waschenbach, Odenwald, Hesse, Germany. 5,5 x 2,5 cm (Author: Andreas Gerstenberg)

Calcite Thomas quarry, Waschenbach

Calcite Tonglüshan Cu-Au-Fe deposit, Edong Mining District, Daye Co., Huangshi Prefecture, Hubei Province, China 96 mm x 90 mm (Author: Carles Millan)

Calcite Tonglüshan Cu-Au-Fe deposi

Calcite Tonglüshan Cu-Au-Fe deposit, Edong Mining District, Daye Co., Huangshi Prefecture, Hubei Province, China 96 mm x 90 mm (Author: Carles Millan)

Calcite Tonglüshan Cu-Au-Fe deposi

Calcite Tonglüshan Cu-Au-Fe deposit, Edong Mining District, Daye Co., Huangshi Prefecture, Hubei Province, China 96 mm x 90 mm (Author: Carles Millan)

Calcite Tonglüshan Cu-Au-Fe deposi

Calcite Tonglüshan Cu-Au-Fe deposit, Daye Co., Huangshi Prefecture, Hubei Province, China Specimen size 8 cm, largest calcite 4 cm (Author: Tobi)

Calcite Tonglüshan Cu-Au-Fe deposi

Calcite Torr Works Quarry (Merehead Quarry), Cranmore, Somerset, England, UK Crystals ~ 6 mm on edge in a cavity in Mn-oxides. FOV ~ 45 mm across. (Author: Andy Lawton)

Calcite Torr Works Quarry (Merehea

Calcite Torr Works Quarry, Cranmore, Somerset, England, UK globular aggregates to 8mm (Author: ian jones)

Calcite Torr Works Quarry, Cranmor

Calcite Trepca Complex, Kosovska Mitrovica, Kosovo 3.0 x 7.4 cm A group of pale yellow quartz crystals coated on one side with opaque white calcite rhombs. (Author: crosstimber)

Calcite Trepca Complex, Kosovska M

Calcite Trepca Complex, Kosovska Mitrovica, Kosovo 6.5 x 7.4 cm A flat plate of lustrous sphalerite crystals and associated siderite covered on both sides with numerous semi-transparent rhombic calcite crystals. (Author: crosstimber)

Calcite Trepca Complex, Kosovska M

Calcite Trepca complex, Kosovska Mitrovica, Kosovo Several intergrown rhombs of light tan calcite partially covered with a second generation of colorless calcite and minor quartz. Mined in 2012. These were originally thought to be dolomite, but subsequent analysis at the Carnegie Museum indicated that they were calcite. (Author: crosstimber)

Calcite Trepca complex, Kosovska M

Calcite Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region, Namibia Crystal size 1 cm Completely transparent calcite rhombohedron on green mottramite (?) (Author: Tobi)

Calcite Tsumeb Mine (Tsumcorp Mine

Calcite Tsumeb Mine, Tsumeb, Namibia 5.7 x 8.1 cm. Intergrown rhombs of colorless calcite to 1.5 cm on edge dusted with sparkly light green duftite. (Author: crosstimber)

Calcite Tsumeb Mine, Tsumeb, Namib

Calcite Tsumeb, Namibia 1 cm (the large crystal) Calcite is a very common mineral, but look at the beauty of this specimen. One large crystal laying on a bed of small parallel growned crystals in a curve. (Author: Herman van Dennebroek)

Calcite Tsumeb, Namibia 1 cm (the

Calcite Turt Mine, Satu Mare, Maramures Co., Romania 100 mm x 65 mm x 44 mm. Main crystal size: 63 mm in diameter (Author: Carles Millan)

Calcite Turt Mine, Satu Mare, Mara

Calcite Turt Mine, Satu Mare, Maramures Co., Romania 100 mm x 65 mm x 44 mm. Main crystal size: 63 mm in diameter (Author: Carles Millan)

Calcite Turt Mine, Satu Mare, Mara

Calcite Vambori, Aurangabad District, Maharashtra, India 4.5 x 5.0 cm. Pale green scalenohedral calcite crystal composed of multiple stacked rhombs, with small calcite rhombs around the base. Recovered during a well dig in 2005. (Author: crosstimber)

Calcite Vambori, Aurangabad Distri

Calcite Vera de Bidasoa, Navarra, Spain fov 40 mm (Author: ploum)

Calcite Vera de Bidasoa, Navarra,

Calcite Verchniy Mine, Dal’negorsk, Primorskiy Kray, Russia 4.1 x 4.6 cm. Two generations of scalenohedral calcites ranging in color from honey-colored to colorless, with rod-shaped crystals of milky-white aragonite. (Author: crosstimber)

Calcite Verchniy Mine, Dal’n

Calcite Verchniy Mine, Dal’negorsk, Primorskiy Kray, Russia 3.5 x 10.0 cm. Scalenohedral calcite crystals to 4.0 cm. perched on a column of arborescent tan calcite and quartz. (Author: crosstimber)

Calcite Verchniy Mine, Dal’n

Calcite Verkhnii Mine, Dal’negorsk, Primorskiy Kray, Russia 13x10.5x10.5 cm A large light pink calcite, the prism faces are all complete but two of them are roughly formed. Collected 2012. (Author: Greg Lilly)

Calcite Verkhnii Mine, Dal’n

Calcite Vtoroy Sovietskiy Mine, Dal’negorsk, Primorskiy Kray, Russia 6.2 x 8.4 cm. Multiple stacks of pale pink lenticular calcites on resinous dark brown sphalerite with several small transparent quartz crystals. Collected in winter 2011. (Author: crosstimber)

Calcite Vtoroy Sovietskiy Mine, Da

Calcite Wenshan Mine, Wenshan Co., Yunnan Prov., China 5.7 x 7.3 cm A thin plate composed of small colorless calcite crystals with a second generation of larger scalenohedral calcites lining the top of the plate. (Author: crosstimber)

Calcite Wenshan Mine, Wenshan Co.,

Calcite Wenshan Mine, Wenshan Co., Yunnan Prov., China 4.0 x 14.0 cm A divergent group of elongate colorless scalenohedral calcite crystals. (Author: crosstimber)

Calcite Wenshan Mine, Wenshan Co.,

Calcite Wessels Mine, Hotazel, N. Cape Province, South Africa 8.2 x 9.0 cm Fan-shaped groups of pink calcite that exhibit intense red fluorescece under SW UV light. (Author: crosstimber)

Calcite Wessels Mine, Hotazel, N.

Calcite Western Cape, South Africa Fingers for scale. (Author: Pierre Joubert)

Calcite Western Cape, South Africa

Calcite Western Cape, South Africa Approx. 40 x 30 mm (Author: Pierre Joubert)

Calcite Western Cape, South Africa

Calcite Western Cape, South Africa fingers for scale (Author: Pierre Joubert)

Calcite Western Cape, South Africa

Calcite White Pigment Quarry, York County, Pennsylvania, USA 5.5 x 4.5 cm (Author: Don Lum)

Calcite White Pigment Quarry, York

Calcite White Pigment Quarry, York County, Pennsylvania, USA 5.5 x 4.5 cm (Author: Don Lum)

Calcite White Pigment Quarry, York

Calcite White Scar caves, Nr Ingleton, North Yorkshire, England, UK. 5 mm across (Author: nurbo)

Calcite White Scar caves, Nr Ingle

Calcite White Scar caves, Nr Ingleton, North Yorkshire, England, UK. FOV 15 x 8 mm (Author: nurbo)

Calcite White Scar caves, Nr Ingle

Calcite White Scar caves, Nr Ingleton, North Yorkshire, England, UK. 65 x 5 mm (Author: nurbo)

Calcite White Scar caves, Nr Ingle

Calcite Wright-McGrady Mine, Karnes Uranium District, Karnes Co., Texas, USA 120 x 150mm. Chunk of a concretion 120 x 150mm. Scalenohedral calcite fluoresces light pink. Rhombohedral calcite is red, chalcedony is green, and the blue is the micrite matrix, although this is more a reflection than fluorescence. (Author: Paul Bordovsky)

Calcite Wright-McGrady Mine, Karne

Calcite Wright-McGrady Mine, Karnes Uranium District, Karnes Co., Texas, USA 8mm on edge. Calcite rhomb (Author: Paul Bordovsky)

Calcite Wright-McGrady Mine, Karne

Calcite Wright-McGrady Mine, Karnes Uranium District, Karnes Co., Texas, USA 8mm on edge. Calcite rhomb (Author: Paul Bordovsky)

Calcite Wright-McGrady Mine, Karne

Calcite Xianghualing Mine, Hunan Province, China Specimen height 40 mm (Author: Tobi)

Calcite Xianghualing Mine, Hunan P

Calcite Xianghualing Mine, Linwu Co., Chenzhou Pref., Hunan Prov., China 9.2 x 10.7 Colorless flattened calcite rhombs with striated faces and serrated edges. (Author: crosstimber)

Calcite Xianghualing Mine, Linwu C

Calcite Xianghualing-Xianghuapu Mines, Hunan, China 17 x 15.5 cm (Author: Don Lum)

Calcite Xianghualing-Xianghuapu Mi

Calcite Xikuangshan Deposit, Hunan Province, China 5 x 4.7 x 4.4 cm ex Geoff Krasnov (Author: Don Lum)

Calcite Xikuangshan Deposit, Hunan

Calcite Xikuangshan Deposit, Hunan Province, China 5 x 4.7 x 4.4 cm ex Geoff Krasnov (Author: Don Lum)

Calcite Xikuangshan Deposit, Hunan

Calcite Yangshan Co., Qingyuan Pref., Guangdong Prov., China 5.7 x 9.8 x 14.9 cm Poker chip calcites with opaque white layers that sandwich clear central zones. The edges and back sides of the crystals are coated with tiny clear fluorite crystals. (Author: crosstimber)

Calcite Yangshan Co., Qingyuan Pre

Calcite Yaogangxian Mine, Yizhang, Chenzhou, Hunan, China 15 x 14.6 x 9.5 cm (Author: chinamineral)

Calcite Yaogangxian Mine, Yizhang,

Calcite Zeehan Mine, Puhoi Valley, Thames, New Zealand 8x6 cm ex John Collins Collection (Author: Greg Lilly)

Calcite Zeehan Mine, Puhoi Valley,

Calcite Zeehan Mine, Puhoi Valley, Thames, New Zealand 8x6 cm ex John Collins Collection (Author: Greg Lilly)

Calcite Zeehan Mine, Puhoi Valley,

Calcite Rabenstein limestone mine near Chemnitz, Germany 3,5 cm Clear calcite from a famous Saxon calcite location: Rabenstein limestone mine near Chemnitz, where calcites up to 50 cm were found in the old days... (Author: Andreas Gerstenberg)

Calcite Rabenstein limestone mine

Calcite (Author: Pierre Joubert)

Calcite

Calcite (Author: Pierre Joubert)

Calcite

Calcite (Author: Pierre Joubert)

Calcite

Calcite & Quartz Baia Sprie Mine, Baia Sprie, Maramureș, Romania 130 mm x 90 mm x 50 mm The base of the specimen is made of very fine euhedral quartz crystals on top of which white and light grey, botryoidal calcite is deposited. A lateral look at the specimen shows transition from the metallic mineralization (sphalerite, galena, pyrite and possible chalcopyrite) to crypto crystalline calcite, very fine crystallized quartz and to the botryoidal white calcite (Author: Adrian Pripoae)

Calcite & Quartz Baia Sprie Mi

Calcite & Quartz
Herja Mine, Chiuzbaia, Baia Sprie, Maramures, Romania
H:6.5 cm x W:5.5 cm x D:5 cm (Author: Adrian Pripoae)

Calcite & Quartz
Herja Min

Calcite & Sphalerite Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA 13x12 cm. Fot. & Col. Juan Hernandez. Adquired in June of 2011. Detail of the previous specimen (Author: supertxango)

Calcite & Sphalerite Elmwood m

Calcite & Sphalerite Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA 13x12 cm. Crystal Size: 12 cm. Fot. & Col. Juan Hernandez. Adquired in June of 2011. (Author: supertxango)

Calcite & Sphalerite Elmwood m

Calcite ( var. Manganoan ) Huanggangliang Iron Mine, Kèshíkèténg Qí, Chifeng, Inner Mongolia A.R., China 87 x 50 x 48 mm A beautiful "wheat sheave" cluster of lustrous, translucent, elongated, pink manganoan Calcite crystals measuring 41 x 34 mm is perched on a matrix of creamy Dolomite(?). It is complemented by a modified cube of opaque, pale pink manganoan Calcite, measuring 22 x 20 mm. A slightly sceptered Quartz crystal to 16 mm and minor sulphide crystals provide a nice accent. No damage. (Author: GneissWare)

Calcite ( var. Manganoan ) Huangga

Calcite ( var. Manganoan ) with Quartz Huanggangliang Fe mine, Kèshíkèténg Qí, Chifeng Prefecture, Inner Mongolia A.R., China 92 x 71 x 52 mm Bright light pink manganoan-Calcite to 55 x 40 x 7 mm with light-smoky Quartz scepters to 14 mm (Author: GneissWare)

Calcite ( var. Manganoan ) with Qu

Calcite ( var. manganoan ) with Quartz Huanggangliang Fe mine, Kèshíkèténg Qí, Chifeng Prefecture, Inner Mongolia A.R., China 168 x 148 x 81 mm (Author: GneissWare)

Calcite ( var. manganoan ) with Qu

Calcite ( variety cobaltoan )
Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire)
6.7 x 4.7 cm (Author: JC)

Calcite ( variety cobaltoan )

Calcite (close up) Crystal River Quarry 2, Lecanto, Citrus County, Florida, USA 5.8 cm. wide Specimen: Francis Benjamin collection Photo: Jeff Scovil (Author: Jordi Fabre)

Calcite (close up) Crystal River Q

Calcite (Cobalt-bearing) Bou Azzer District, Anti-Atlas Mountains, Tazenakht, Ouarzazate Province, Souss-Massa-Draa Region, Morocco 8.5 x 8.3 x 4.5 cm (Author: Don Lum)

Calcite (Cobalt-bearing) Bou Azzer

Calcite (Cobalt-bearing) Bou Azzer District, Anti-Atlas Mountains, Tazenakht, Ouarzazate Province, Souss-Massa-Draa Region, Morocco 8.5 x 8.3 x 4.5 cm (Author: Don Lum)

Calcite (Cobalt-bearing) Bou Azzer

Calcite (Cobalt-bearing) Bou Azzer District, Anti-Atlas Mountains, Tazenakht, Ouarzazate Province, Souss-Massa-Draa Region, Morocco 7.8 x 7.5 x 4.7 cm (Author: Don Lum)

Calcite (Cobalt-bearing) Bou Azzer

Calcite (Cobalt-bearing) Bou Azzer District, Anti-Atlas Mountains, Tazenakht, Ouarzazate Province, Souss-Massa-Draa Region, Morocco 7.8 x 7.5 x 4.7 cm (Author: Don Lum)

Calcite (Cobalt-bearing) Bou Azzer

Calcite (cobaltoan) Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre) FOV 25 mm (Author: Tobi)

Calcite (cobaltoan) Katanga Copper

Calcite (cobaltoan) Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre) 35 x 30 x 25 mm (Author: Tobi)

Calcite (cobaltoan) Katanga Copper

Calcite (cobaltoan) Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre) 35 x 30 x 25 mm (Author: Tobi)

Calcite (cobaltoan) Katanga Copper

Calcite (Cobaltoan) Mashamba West Mine, Kolwezi, Katanga, Democratic Republic of the Congo 2.8 x 2.8 cm ex Ron Pellar (Author: Don Lum)

Calcite (Cobaltoan) Mashamba West

Calcite (Cobaltoan), Kolwezite Mashamba West Mine, Kolwezi, Katanga, Democratic Republic of the Congo 2.6 x 1.8 cm ex Gilbert Gauthier (Author: Don Lum)

Calcite (Cobaltoan), Kolwezite Mas

Calcite (Cobaltoan), Kolwezite Mashamba West Mine, Kolwezi, Katanga, Democratic Republic of the Congo 2.6 x 1.8 cm ex Gilbert Gauthier (Author: Don Lum)

Calcite (Cobaltoan), Kolwezite Mas

Calcite (Cobaltoan), Kolwezite Mashamba West Mine, Kolwezi, Katanga, Democratic Republic of the Congo 2.6 x 1.8 cm ex Gilbert Gauthier (Author: Don Lum)

Calcite (Cobaltoan), Kolwezite Mas

Calcite (dogtooth) with Chalcopyrite Mina Bismark, Ascención, Chihuahua, Mexico 86x52x67mm (Author: Carlos M.)

Calcite (dogtooth
Mina Bismark, Asc

Calcite (later corrected to siderite) from Bräunsdorf near Freiberg, Saxony. A 1900s label. (Author: Andreas Gerstenberg)

Calcite (later corrected to sideri

Calcite (manganoan) Broken Hill Mine, New South Wales, Australia 14 x 8.2 x 6 cm ex-Bill Rudner (Author: Don Lum)

Calcite (manganoan) Broken Hill Mi

Calcite (manganoan) Broken Hill Mine, New South Wales, Australia 14 x 8.2 x 6 cm ex-Bill Rudner (Author: Don Lum)

Calcite (manganoan) Broken Hill Mi

Calcite (septarian nodule) Muddy Creek, Orderville, Kane Co., Utah, USA 130-140 mm in diameter (Author: Tobi)

Calcite (septaria
Muddy Creek, Orde

Calcite (septarian nodule)
Guipúzcoa / Gipuzkoa, Basque Country (Euskadi), Spain
9 cm x 8 cm x 5 cm (Author: Firmo Espinar)

Calcite (septarian nodule)
Gui

Calcite (septarian nodule)
Guipúzcoa / Gipuzkoa, Basque Country (Euskadi), Spain
9 cm x 8 cm x 5 cm (Author: Firmo Espinar)

Calcite (septarian nodule)
Gui

Calcite (septarian nodule)
Muddy Creek, Orderville, Kane County, Utah, USA
16 cm (Author: Tobi)

Calcite (septarian nodule)
Mud

Calcite (Siliceous) Shannon County, South Dakota, USA 7 x 8 cm. (Author: vic rzonca)

Calcite (Siliceous) Shannon County

Calcite (twin?) (assocd. with barite) Mex-Tex Mine, Bingham, NM (Author: John Medici)

Calcite (twin?) (assocd. with bari

Calcite (twinned) on Sphalerite Elmwood. Tennesse. USA 4.8cm (Author: Jon Mommers)

Calcite (twinned) on Sphalerite El

Calcite (twinned)
Áliva Mine (Las Mánforas Mine), level 2, Áliva mining area, Camaleño, Comarca Liébana, Cantabria, Spain
82 mm x 75 mm x 51 mm (crystal size 26 mm x 15 mm) (Author: Don Lum)

Calcite (twinned)
Áliva Mine

Calcite (twinned)
Áliva Mine (Las Mánforas Mine), level 2, Áliva mining area, Camaleño, Comarca Liébana, Cantabria, Spain
82 mm x 75 mm x 51 mm (Author: Don Lum)

Calcite (twinned)
Áliva Mine

Calcite (twinned)
Áliva Mine (Las Mánforas Mine), level 2, Áliva mining area, Camaleño, Comarca Liébana, Cantabria, Spain
82 mm x 75 mm x 51 mm (Author: Don Lum)

Calcite (twinned)
Áliva Mine

Calcite (Twinned)
Sokolovskoe Mine (Sokolovskiy Mine), Rudny, Kostanay Region, Kazakhstan
43 mm x 37 mm x 33 mm (Author: Don Lum)

Calcite (Twinned)
Sokolovskoe

Calcite (twinned)
Dachang District, Nandan, Hechi Prefecture, Guangxi Zhuang Autonomous Region, China
13.5 x 11 x 7 cm (Author: MIM Museum)

Calcite (twinned)
Dachang Dist

Calcite (twinned)
Dachang District, Nandan, Hechi Prefecture, Guangxi Zhuang Autonomous Region, China
13.5 x 11 x 7 cm (Author: MIM Museum)

Calcite (twinned)
Dachang Dist

Calcite (variety Co-bearing calcite), Calcite
Democratic Republic of the Congo (Zaire)
33 mm x 25 mm x 22 mm (Author: Don Lum)

Calcite (variety Co-bearing calcite), Calcite
Democratic Republic of t

Calcite (variety Co-bearing calcite)
Lanping, Nujiang Autonomous Prefecture, Yunnan Province, China
61 mm x 47 mm x 37 mm (Author: Don Lum)

Calcite (variety Co-bearing calcite)
Lanping, Nujiang Autonomous Prefecture, Yunnan Province

Calcite (variety Co-bearing calcite)
Bou Azzer mining district, Drâa-Tafilalet Region, Morocco
4 x 3,5 cm (Author: Volkmar Stingl)

Calcite (variety Co-bearing calcite)
Bou Azzer mining district, Drâa-Tafilalet Region,

Calcite (variety cobaltian calcite)
Gnade Gottes Mine, Alter Schmiedestollen adit, Wittichen, Schenkenzell, Rottweil, Black Forest, Baden-Württemberg, Germany
5,5 x 4,5 cm (Author: Andreas Gerstenberg)

Calcite (variety cobaltian calcite)
Gnade Gottes Mine, Alter Schmiedestollen adit, Wittichen, Schenkenzell, Rottweil, Black Forest, Baden-Württemberg, G

Calcite (variety cobaltoan calcite) Mashamba West Mine, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre) 6 x 5 cm Purplish-pink scalenohedra of calcite with lustrous faces and gemmy terminations (Author: Don Lum)

Calcite (variety cobaltoan calcite

Calcite (variety cobaltoan calcite) Mashamba West Mine, Kolwezi District, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre) 6 x 5 cm Purplish-pink scalenohedra of calcite with lustrous faces and gemmy terminations (Author: Don Lum)

Calcite (variety cobaltoan calcite

Calcite (variety cobaltoan calcite) with Plancheite
Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire)
6,5 x 5,0 x 9,5 cm (Author: MIM Museum)

Calcite (variety cobaltoan calcite) with Plancheite
Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republi

Calcite (variety cobaltoan calcite)
Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire)
6.7 cm (Author: Nunzio)

Calcite (variety cobaltoan calcite)
Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (

Calcite (variety cobaltoan calcite)
Aghbar Mine (Arhbar Mine), Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region, Morocco
90 mm x 58 mm x 47 mm (Author: Don Lum)

Calcite (variety cobaltoan calcite)
Aghbar Mine (Arhbar Mine), Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region, M

Calcite (variety cobaltoan calcite)
Agoudal Mines, Tansifite, Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region, Morocco
78mm x 75mm x 52mm (Author: Don Lum)

Calcite (variety cobaltoan calcite)
Agoudal Mines, Tansifite, Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region, M

Calcite (variety cobaltoan calcite)
Agoudal Mines, Tansifite, Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region, Morocco
78mm x 75mm x 52mm (Author: Don Lum)

Calcite (variety cobaltoan calcite)
Agoudal Mines, Tansifite, Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region, M

Calcite (variety cobaltoan calcite)
Bou Azzer mining district, Drâa-Tafilalet Region, Morocco
82mm x 53mm x 32mm (Author: Don Lum)

Calcite (variety cobaltoan calcite)
Bou Azzer mining district, Drâa-Tafilalet Region, M

Calcite (variety cobaltoan calcite)
Aghbar Mine (Arhbar Mine), Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region, Morocco
65mm x 42mm x 25mm (Author: Don Lum)

Calcite (variety cobaltoan calcite)
Aghbar Mine (Arhbar Mine), Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region, M

Calcite (variety cobaltoan calcite)
Wallis (Valais), Switzerland
100 mm x 80 mm x 40 mm (Author: Dany Mabillard)

Calcite (variety cobaltoan calcite)
Wallis (Valais), Switz

Calcite (variety cobaltoan calcite)
Bou Azzer mining district, Drâa-Tafilalet Region, Morocco
46 mm x 40 mm x 30 mm (Author: Don Lum)

Calcite (variety cobaltoan calcite)
Bou Azzer mining district, Drâa-Tafilalet Region, M

Calcite (variety cobaltoan calcite)
Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire)
Specimen size 5,5 cm (Author: Tobi)

Calcite (variety cobaltoan calcite)
Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (

Calcite (variety cobaltoan), Malachite
Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire)
3 x 3 cm (Author: JC)

Calcite (variety cobaltoan), Malachite
Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Cong

Calcite (variety cobaltoan)
Agoudal Mines, Tansifite, Agdz, Bou Azzer mining district, Zagora Province, Drâa-Tafilalet Region, Morocco
Specimen size: 8 × 7.5 × 3.3 cm / main crystal siz (Author: Jordi Fabre)

Calcite (variety cobaltoan)
Ag

Calcite (variety colbaltoan calcite), Malachite
Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire)
127 mm x 70 mm x 64 mm (Author: Don Lum)

Calcite (variety colbaltoan calcite), Malachite
Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of

Calcite (variety glendonite) after Ikaite
Kola Peninsula, Murmanskaja Oblast, Northern Region, Russia
90mm x 50mm (Author: Don Lum)

Calcite (variety glendonite) after Ikaite
Kola Peninsula, Murmanskaja Oblast, Northern Re

Calcite (variety glendonite) after Ikaite
Kola Peninsula, Murmanskaja Oblast, Northern Region, Russia
57mm x 54mm (Author: Don Lum)

Calcite (variety glendonite) after Ikaite
Kola Peninsula, Murmanskaja Oblast, Northern Re

Calcite (variety kanonenspat) and Quartz
Jebel Masker, Imilchil area, Tounfit, Khénifra Province, Beni Mellal-Khenifra Region, Morocco
67 mm x 33 mm x 32 mm main crystal (Author: Firmo Espinar)

Calcite (variety kanonenspat) and Quartz
Jebel Masker, Imilchil area, Tounfit, Khénifra Province, Beni Mellal-Khenifra Regi

Calcite (variety kanonenspat) and Quartz
Jebel Masker, Imilchil area, Tounfit, Khénifra Province, Beni Mellal-Khenifra Region, Morocco
87 mm x 56 mm x 62 mm (Author: Firmo Espinar)

Calcite (variety kanonenspat) and Quartz
Jebel Masker, Imilchil area, Tounfit, Khénifra Province, Beni Mellal-Khenifra Regi

Calcite (variety manganese-rich) on Quartz
Sheffler's Geode Mine, St. Francisville, Clark County, Missouri, USA
large geode about 18 cm. The calcites are up to ab (Author: Bob Harman)

Calcite (variety manganese-rich) on Quartz
Sheffler's Geode Mine, St. Francisville, Clark County,

Calcite (variety manganoan calcite), Dolomite, Pyrite
Gavorrano Mine area, Gavorrano, Grosseto Province, Tuscany, Italy
26 x 25 cm (Author: Sante Celiberti)

Calcite (variety manganoan calcite), Dolomite, Pyrite
Gavorrano Mine area, Gavorrano, Grosseto

Calcite (variety manganoan calcite), Dolomite, Pyrite
Gavorrano Mine area, Gavorrano, Grosseto Province, Tuscany, Italy
26 x 25 cm (Author: Sante Celiberti)

Calcite (variety manganoan calcite), Dolomite, Pyrite
Gavorrano Mine area, Gavorrano, Grosseto

Calcite (variety manganoan calcite)
N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa
70 mm x 55 mm x 47 mm (Author: Don Lum)

Calcite (variety manganoan calcite)
N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South

Calcite (variety manganoan calcite)
Schönbrunn, Oelsnitz, Vogtlandkreis, Saxony/Sachsen, Germany
30 x 20 x 20 mm (Author: SunYi)

Calcite (variety manganoan calcite)
Schönbrunn, Oelsnitz, Vogtlandkreis, Saxony/Sachsen, G

Calcite (variety manganoan) on Kutnohorite
N'Chwaning III Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa
2.5cm X 2.3cm x 1.3cm (Author: steven calamuci)

Calcite (variety manganoan) on Kutnohorite
N'Chwaning III Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province,

Calcite (variety manganoan) on Kutnohorite
N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa
2.5cm X 2.3cm x 1.3cm (Author: steven calamuci)

Calcite (variety manganoan) on Kutnohorite
N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province,

Calcite (variety manganoan) on Kutnohorite
N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province, South Africa
2.5cm X 2.3cm x 1.3cm (Author: steven calamuci)

Calcite (variety manganoan) on Kutnohorite
N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province,

Calcite (variety manganoan), Dolomite, Anhydrite
Campiano Mine, Montieri, Grosseto Province, Tuscany, Italy
18 x 13 cm (Author: Sante Celiberti)

Calcite (variety manganoan), Dolomite, Anhydrite
Campiano Mine, Montieri, Grosseto Provi

Calcite (variety Mn-bearing calcite)
Ravi, Gavorrano, Grosseto Province, Tuscany, Italy
detail (Author: Firmo Espinar)

Calcite (variety Mn-bearing calcite)
Ravi, Gavorrano, Grosseto Province, Tuscany

Calcite (variety Mn-bearing calcite)
Ravi, Gavorrano, Grosseto Province, Tuscany, Italy
detail (Author: Firmo Espinar)

Calcite (variety Mn-bearing calcite)
Ravi, Gavorrano, Grosseto Province, Tuscany

Calcite (variety Mn-bearing calcite)
Ravi, Gavorrano, Grosseto Province, Tuscany, Italy
110 mm x 60 mm x 78 mm (Author: Firmo Espinar)

Calcite (variety Mn-bearing calcite)
Ravi, Gavorrano, Grosseto Province, Tuscany

Calcite (variety Mn-bearing)
Wuyi tunnel north (construction site), Wuyishan, Nanping Prefecture, Fujian Province, China
6,5 x 5 cm (Author: Volkmar Stingl)

Calcite (variety Mn-bearing)
W

Calcite (variety Mn-bearing)
Wuyi tunnel north (construction site), Wuyishan, Nanping Prefecture, Fujian Province, China
6,5 x 5 cm (Author: Volkmar Stingl)

Calcite (variety Mn-bearing)
W

Calcite (variety sand-calcite)
Rattlesnake Butte, Jackson County, South Dakota, USA
6.7 x 5.4 cm (Author: am mizunaka)

Calcite (variety sand-calcite)
Rattlesnake Butte, Jackson County, South Dakota, US

Calcite (variety sand-calcite)
Clay pit, Mályi, Miskolc District, Borsod-Abaúj-Zemplén, Hungary
5 x 3,5 cm (Author: Volkmar Stingl)

Calcite (variety sand-calcite)
Clay pit, Mályi, Miskolc District, Borsod-Abaúj-Zemplén, Hungar

Calcite (variety sand-calcite)
Clay pit, Mályi, Miskolc District, Borsod-Abaúj-Zemplén, Hungary
5 x 3,5 cm (Author: Volkmar Stingl)

Calcite (variety sand-calcite)
Clay pit, Mályi, Miskolc District, Borsod-Abaúj-Zemplén, Hungar

Calcite + ? Eller Beck, Askrigg, North Yorkshire, England, UK. FOV 20 x 20 mm approx (Author: nurbo)

Calcite + ? Eller Beck, Askrigg, N

Calcite + ? Eller Beck, Askrigg, North Yorkshire, England, UK. 35 x 30 mm (Author: nurbo)

Calcite + ? Eller Beck, Askrigg, N

Calcite + ? Stank Mine near Barrow in Furness,Cumbria FOV sapprox 15 x 15 mm What an interesting termination this crystal has. (Author: nurbo)

Calcite + ? Stank Mine near Barrow

Calcite + ? Stank Mine near Barrow in Furness,Cumbria FOV sapprox 15 x 15 mm (Author: nurbo)

Calcite + ? Stank Mine near Barrow

Calcite + ? Stank Mine near Barrow in Furness,Cumbria FOV sapprox 15 x 15 mm (Author: nurbo)

Calcite + ? Stank Mine near Barrow

Calcite + ? Stank Mine near Barrow in Furness,Cumbria FOV sapprox 15 x 15 mm (Author: nurbo)

Calcite + ? Stank Mine near Barrow

Calcite + ? under LW UV Eller Beck, Askrigg, North Yorkshire, England, UK. FOV 20 x 20 mm approx (Author: nurbo)

Calcite + ? under LW UV Eller Beck

Calcite + analcime. A gorgeous brown group of slightly curved rhombohedral calcites, in a vug lined with small (2mm) analcime crystals. The calcites are very lustrous, and rather difficult to photograph ! Vug measures 36mm high x 25mm wide. Self-collected 1999 from Talisker Bay, Minginish, Isle of Skye. (Author: Mike Wood)

Calcite + analcime. A gorgeous bro

Calcite + chabazite + analcime Talisker Bay, Isle of Skye, Scotland, UK Calcite crystals 25 mm Honey-brown spike of rhombohedral calcite crystals 25mm long stands in a vug (35mm x 20mm) lined with small twinned pinkish chabazite crystals and a single white analcime crystal (3mm). Self-collected 1992 from Talisker Bay, Isle of Skye. (Author: Mike Wood)

Calcite + chabazite + analcime Tal

Calcite + chabazite. A nice ’floater’ specimen of transparent yellowish calcite with a matt surface, on lustrous chabazites. Specimen is 23mm high x 20mm x 17mm. Self-collected 2009 from Moonen Bay, Isle of Skye. (Author: Mike Wood)

Calcite + chabazite. A nice &rsquo

Calcite + chabazite. A not-so-good photo showing a nice yellowish transparent calcite rhomb to 15mm on edge, on a bed of small chabazite crystals. Specimen is 50mm x 25mm x 22mm. Self-collected 1999 from Moonen Bay, Duirinish, Isle of Skye. (Author: Mike Wood)

Calcite + chabazite. A not-so-good

Calcite + stilbite Biod a’ Mhurain, Duirinish, Isle of Skye, Scotland, UK The plate measures 22 cm x 13 cm Very large plate covered on both sides with simple calcite rhombs to 5mm, on a layer of micro stilbite crystals (which are much more exposed on the back of the specimen). Several groups of large pale yellow interpenetrant calcite rhombs are perched aesthetically on the specimen. The plate measures 22cm x 13cm. Self-collected, in the company of Dave Green, 1997 from Biod a’ Mhurain, Duirinish, Isle of Skye. (Author: Mike Wood)

Calcite + stilbite Biod a’ M

Calcite + stilbite Biod a’ Mhurain, Duirinish, Isle of Skye, Scotland, UK The large calcites 29 mm on edge A beautiful specimen of transparent, slightly etched rhombohedral calcite with some modifications to the corners and edges. The large calcites (to 29mm on edge) rest on a bed of micro stilbite crystals and a few simple calcite rhombs. This is the first specimen I found at this locality; it was exposed to the atmosphere and colourless. The other calcites found within the cavity have a yellowish hue. Self-collected 1996 from Biod a’ Mhurain, Duirinish, Isle of Skye. (Author: Mike Wood)

Calcite + stilbite Biod a’ M

Calcite + stilbite Biod a’ Mhurain, Duirinish, Isle of Skye, Scotland, UK Specimen is 75 mm x 45 mm Calcite crystal 20mm wide An interpenetrant rhombohedral calcite crystal 20mm wide is perched aesthetically on a bed of simple calcite rhombs (to 4mm), on a thin bed of micro stilbite crystals. Specimen is 75 mm x 45 mm. Self-collected 1997 from Biod a’ Mhurain, Duirinish, Isle of Skye. (Author: Mike Wood)

Calcite + stilbite Biod a’ M

Calcite + stilbite Biod a’ Mhurain, Duirinish, Isle of Skye, Scotland, UK Calcite crystal 33 mm A large interpenetrant rhombohedral twinned calcite crystal 33mm wide is perched aesthetically on a bed of smaller simple calcite rhombs, which are in turn deposited on a thin layer (1mm) of tiny stilbites. The calcites are mostly dull with surface etching or coating but are transparent otherwise. Found at a very remote locality on the Duirinish peninsular. This specimen and the next three specimen photo’s all came from the same large vein cavity, in basalt lava. Self-collected 1997 from Biod a’ Mhurain, Duirinish, Isle of Skye, Scotland. (Author: Mike Wood)

Calcite + stilbite Biod a’ M

Calcite + stilbite Camas na h-Uamha (Bay of Caves), Duirinish, Isle of Skye, Scotland, UK Specimen is 75 mm wide and 55 mm high. This specimen is from a different locality, though again it was in a vein cavity in basalt. There are THREE different forms of calcite here, though only two are represented on this specimen. The earlier scalenohedral calcites are coated with micro-crystallised stilbite, with simple later calcite rhombs on top; a rather beautiful combination. Specimen is 75mm wide and 55mm high. By the way, that calcite scalenohedron near the bottom left that sticks out leftwards - is stuck back on - in this case it was probably an unnecessary repair! Self-collected 1998 from Camas na h-Uamha (Bay of Caves), Duirinish, Isle of Skye. (Author: Mike Wood)

Calcite + stilbite Camas na h-Uamh

Calcite + stilbite. An elongated scalenohedron of calcite 64mm long is coated with micro stilbites, with a few rhombohedral calcites aesthetically perched on the larger crystal. Self-collected 1999 from Camas na h-Uamha, Duirinish, Isle of Skye. (Author: Mike Wood)

Calcite + stilbite. An elongated s

Calcite + stilbite. Basically a rhombohedral habit of transparent calcite, but elongated, into thin crystals, on a bed of stilbite. Specimen measures 55mm wide x 40mm high x 30mm deep. Self-collected 1994 from Sgurr nam Boc, Minginish, Isle of Skye. (Author: Mike Wood)

Calcite + stilbite. Basically a rh

Calcite + stilbite. Nice yellowish rhombohedral calcite crystal to 15mm on the front edge, associated with small white stilbite crystals. Specimen is 37mm wide x 20mm high x 20mm deep. Self-collected 1992 from Sgurr an Duine, Minginish, Isle of Skye. ( Sgurr an Duine is the cliff/beach immediately north of Sgurr nam Boc.) (Author: Mike Wood)

Calcite + stilbite. Nice yellowish

Calcite + stilbite. Same specimen as Skye Minerals 094 seen previously, from a slightly different angle. Specimen is 58mm high and 80mm wide from this angle. Self-collected 1998 from Camas na h-Uamha, Duirinish, Isle of Skye. (Author: Mike Wood)

Calcite + stilbite. Same specimen

Calcite + stilbite. The only decent specimen showing the third habit of calcite at this locality. A ’butterfly’ twinned and flattened scalenohedral crystal measuring 25mm x 19mm is partially coated with micro stilbites, as is the more common elongated scalenohedral ’dog-tooth’ habit of crystal. The later more simple rhombohedral calcites appear to have been deposited after the earlier forms af calcite were covered with the micro stilbite crystals. Specimen measures 80mm wide (not all shown in the photo) x 45mm high x 40mm deep. Self-collected 1998 from Camas na h-Uamha, Duirinish, Isle of Skye. (Author: Mike Wood)

Calcite + stilbite. The only decen

Calcite - Denton Mine. 6.5 x 7.2 cm (Author: crosstimber)

Calcite - Denton Mine. 6.5 x 7.2

Calcite - Minerva #1 Mine. 5.7 x 7.2 cm. (Author: crosstimber)

Calcite - Minerva #1 Mine. 5.7 x

Calcite - Minerva #1 Mine. 6.5 x 8.6 cm (Author: crosstimber)

Calcite - Minerva #1 Mine. 6.5 x

Calcite - Quartz
Grischun (Grisons; Graubünden), Switzerland
70 mm x 50 mm x 60 mm (Author: Dany Mabillard)

Calcite - Quartz
Grischun (Gri

Calcite - Sweetwater Mine Reynolds Co. Missouri USA (Viburnum Trend) large cabinet specimen (Author: Singingstone48)

Calcite - Sweetwater Mine Reynolds

calcite 1.JPG (Author: nurbo)

calcite 1.JPG

Calcite 1 Stahovica Slovenia 15 cm x 15,5 cm x 5 cm (Author: Leon56)

Calcite 1
Stahovica Sloveni

calcite 2.JPG (Author: nurbo)

calcite 2.JPG

Calcite 2 Quarry in Stahovica, Slovenia 14 cm x 10 cm x 8 cm (Author: Leon56)

Calcite 2
Quarry in Stahovi

Calcite 3 - crystal Quarry in Stahovica, Slovenia 11 cm x 12 cm x 6 cm (Author: Leon56)

Calcite 3 - cryst
Quarry in Stahovi

Calcite 4 - fluorescent crystal Quarry in Stahovica, Slovenia 2 pieces: 4 cm x 3 cm x 3 cm (Author: Leon56)

Calcite 4 - fluor
Quarry in Stahovi

calcite 4.JPG (Author: nurbo)

calcite 4.JPG

Calcite 5- geode shell Quarry in Stahovica, Slovenia 14 cm x 11 cm x 5 cm (Author: Leon56)

Calcite 5- geode
Quarry in Stahovi

Calcite after ammonite
Alberta, Canada
220 mm x 171 mm x 40 mm (Author: Don Lum)

Calcite after ammonite
Alberta

Calcite after ammonite
Alberta, Canada
220 mm x 171 mm x 40 mm (Author: Don Lum)

Calcite after ammonite
Alberta

Calcite after ammonite
Alberta, Canada
272 mm x 200 mm (Author: Don Lum)

Calcite after ammonite
Alberta

Calcite after ammonite
Alberta, Canada
272 mm x 200 mm (Author: Don Lum)

Calcite after ammonite
Alberta

Calcite after coral
Key Largo (Cayo Largo), Florida Keys Archipelago, Monroe County, Florida, USA
12 cm. high (Author: Jordi Fabre)

Calcite after coral
Key Largo

Calcite after coral
Key Largo (Cayo Largo), Florida Keys Archipelago, Monroe County, Florida, USA
12.4 cm. high (Author: Jordi Fabre)

Calcite after coral
Key Largo

Calcite after Gypsum
De Los Cazadores Ravine, Rivas-Vaciamadrid, Comarca Área metropolitana de Madrid, Community of Madrid, Spain
75 mm x 63 mm x 62 mm (Author: Firmo Espinar)

Calcite after Gypsum
De Los Ca

Calcite after Halite Major County, Oklahoma, USA 3.0 x 2.5cm (Author: rweaver)

Calcite after Halite Major County,

Calcite after Halite
Fairview, Major County, Oklahoma, USA
2.0 x 2.0 cm (Author: crosstimber)

Calcite after Halite
Fairview,

Calcite after Ikaite (variety glendonite)
Olenitsa River, Kola Peninsula, Murmanskaja Oblast, Northern Region, Russia
2.0 x 2.0 cm (Author: Michael Shaw)

Calcite after Ikaite (variety glendonite)
Olenitsa River, Kola Peninsula, Murmanskaja Oblast, Northern Re

Calcite after Ikaite
Bol’shaya Balakhnya River, Taimyr Peninsula, Taymyrskiy Autonomous Okrug, Krasnoyarsk Krai, Russia
10 x 9 x 7 cm (Author: MIM Museum)

Calcite after Ikaite
Bol’shay

Calcite amethystine Lane / Hampden Quarries, Westfield, Massachusetts, USA 11x9 cm. (Author: vic rzonca)

Calcite amethysti
Lane / Hampden Qu

Calcite amethystine Lane / Hampden Quarries, Westfield, Massachusetts, USA 11x9 cm. two views. (Author: vic rzonca)

Calcite amethysti
Lane / Hampden Qu

Calcite and amphibole
Příbram, Central Bohemia Region, Bohemia, Czech Republic
15 x 30 cm (Author: Psax)

Calcite and amphibole
Př�

Calcite and Aragonite
Carlsbad, Eddy County, New Mexico, USA
105 mm x 75 mm x 70 mm (Author: Robert Seitz)

Calcite and Aragonite
Carlsbad

Calcite and Aragonite
Carlsbad, Eddy County, New Mexico, USA
105 mm x 75 mm x 70 mm (Author: Robert Seitz)

Calcite and Aragonite
Carlsbad

Calcite and Aurichalcite Helvetia area, Helvetia-Rosemont District, Santa Rita Mts., Pima County, Arizona, USA 96 x 62 mm (Author: GneissWare)

Calcite and Aurichalcite Helvetia

Calcite and Barite on Quartz
Monroe Reservoir spillway, Monroe County, Indiana, USA
calcites up to 4.0 cm, barite up to 2.5 cm (Author: Bob Harman)

Calcite and Barite on Quartz
M

Calcite and Barite on Quartz
Monroe Reservoir spillway, Monroe County, Indiana, USA
calcites up to 4.0 cm barite up to 2.5 cm (Author: Bob Harman)

Calcite and Barite on Quartz
M

Calcite and Barite on Quartz
Monroe Reservoir spillway, Monroe County, Indiana, USA
calcites up to 3.0 cm, barite up to 2.5 cm (Author: Bob Harman)

Calcite and Barite on Quartz
M

Calcite and Barite on Quartz
Monroe Reservoir spillway, Monroe County, Indiana, USA
calcites up to 3.0 cm, barite up to 2.5 cm (Author: Bob Harman)

Calcite and Barite on Quartz
M

Calcite and Celestine
Chittenango Falls, Fenner, Madison County, New York, USA
4.5 x 5.2 cm (Author: crosstimber)

Calcite and Celestine
Chittena

Calcite and Cerussite
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
75mm x 48mm x 37mm (Author: Heimo Hellwig)

Calcite and Cerussite
Tsumeb M

Calcite and Cerussite
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
75mm x 48mm x 37mm (Author: Heimo Hellwig)

Calcite and Cerussite
Tsumeb M

Calcite and Cerussite
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
75mm x 48mm x 37mm (Author: Heimo Hellwig)

Calcite and Cerussite
Tsumeb M

Calcite and Cerussite
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
75mm x 48mm x 37mm (Author: Heimo Hellwig)

Calcite and Cerussite
Tsumeb M

Calcite and Chalcopyrite
Chenzhou Prefecture, Hunan Province, China
34,0 x 24,0 x 20,0 cm (Author: MIM Museum)

Calcite and Chalcopyrite
Chenz

Calcite and Conichalcite.
La Cena del Depósito Claim, Huércal-Overa, Comarca Levante Almeriense, Almería, Andalusia, Spain
10 cm x 6 cm x 4 cm (Author: Firmo Espinar)

Calcite and Conichalcite.
La C

Calcite and Conichalcite.
La Cena del Depósito Claim, Huércal-Overa, Comarca Levante Almeriense, Almería, Andalusia, Spain
10 cm x 6 cm x 4 cm (Author: Firmo Espinar)

Calcite and Conichalcite.
La C

Calcite and Conichalcite
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
58mm x 63mm x 37mm (Author: Heimo Hellwig)

Calcite and Conichalcite
Tsume

Calcite and Copper Keweenaw Peninsula, Upper Peninsula Region, Michigan, USA 40 x 32 x 18 mm (Author: GneissWare)

Calcite and Copper Keweenaw Penins

Calcite and Copper Quincy Mine, Pewabic Amygdaloid Lodes, Houghton County, Michigan, USA 114 x 82 x 75 mm (Author: GneissWare)

Calcite and Copper Quincy Mine, Pe

Calcite and Copper
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
57mm x 40mm x 23mm (Author: Heimo Hellwig)

Calcite and Copper
Tsumeb Mine