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Millerite
Coed Ely Colliery, Coed Ely, Rhondda-Cynon-Taff, Wales, UK
Spray of bright millerite crystals to 15mm with a small ball of transparent red hydrocarbon at the centre. Collected April 1996 (Author: ian jones)
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Millerite
Deep Navitation Colliery, Treharris, Merthyr Tydfil, Wales, UK
longest crystal 27mm
Greenish, oxydised millerite sprays, with one crystal totally covered with elongated galena crystals, on siderite within an ironstone cavity. Siegenite crystal, 0.5mm to the left of the millerite. collected August 1995. (Author: ian jones)
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Millerite
Ferndale 8&9 Pits, Ferndale, Rhondda, Cynon, Taff, Wales, UK
Millerite, main spray 22mm.
The green alteration has often been described as morenosite, but analysis at the National Museum of Wales on a number of specimens failed to find it, returning at best a mixture. Morenosite is a yet unproven in the S Wales coalfield.
However, analysis of a particularly rich example from Llanbradach Colliery by my friend Prof. Pete Williams at the University of Western Sydney showed this, at least, to be nicklehehahydrite. (Author: ian jones)
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Millerite
Kaser Quarry, Ollie, Keokuk County, Iowa, USA
Field of view is 3.8cm.
Photo: Jim Prentiss
A "cat’s hair" Millerite from Jim Prentiss (http://www.mineral-forum.com/message-board/viewtopic.php?p=8866#8866)
Thanks Jim! (Author: Jordi Fabre)
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Millerite
Pfannenberger Einigkeit mine, Salchendorf, Siegerland, Northrhine-Westphalia, Germany
3,8 x 3,2 cm (Author: Andreas Gerstenberg)
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Millerite
Victoria mine, Littfeld, Siegerland, Northrhine-Westphalia, Germany
3 x 2 cm (Author: Andreas Gerstenberg)
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Millerite and Calcite on Quartz (variety chalcedony)
State Route 37 road cuts, Harrodsburg, Clear Creek Township, Monroe County, Indiana, USA
Geode is 7 cm. The millerite spray is 4cm (Author: Bob Harman) -
Millerite and Pyrite
U.S. Highway 27 roadcut, Halls Gap, Lincoln County, Kentucky, USA
5.5 cm (Author: Bob Harman) -
Millerite and Pyrite
U.S. Highway 27 roadcut, Halls Gap, Lincoln County, Kentucky, USA
(Author: Bob Harman) -
Millerite and Siderite
Ferndale Pits, Tylorstown, Rhondda-Cynon-Taff, Wales, UK
crystals to 20mm
Radiating spray of free-standing millerite crystals to 20mm, on siderite. This came out of a huge block of ironstone and then took a bit of getting back in one piece! Collected 1990. (Author: ian jones)
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Millerite in Calcite and Barite
Monroe County, Indiana, USA
The millerite spays are up to 2 cm (Author: Bob Harman) -
Millerite nestled in Quartz
Harrodsburg area, Clear Creek Township, Monroe County, Indiana, USA
The millerite spray is 2.0 cm (Author: Bob Harman) -
Millerite on Quartz
Wallace Stone Company Quarry, Bay Port Michigan, Pigeon, Huron County, Michigan, USA
1.8 cm (Author: Bob Harman) -
Millerite on Quartz
Wallace Stone Company Quarry, Bay Port Michigan, Pigeon, Huron County, Michigan, USA
3 examples 1.8 cm - 2.4 cm (Author: Bob Harman) -
Millerite on Quartz
Wallace Stone Company Quarry, Bay Port Michigan, Pigeon, Huron County, Michigan, USA
3 examples 1.8 cm - 2.4 cm (Author: Bob Harman) -
Millerite on Quartz
Harrodsburg area, Clear Creek Township, Monroe County, Indiana, USA
acicular sprays up to 3.0 cm in a 10.0 geode (Author: Bob Harman) -
Millerite on Quartz
Harrodsburg area, Clear Creek Township, Monroe County, Indiana, USA
acicular sprays up to 3.0 in a 10.0 cm geode. (Author: Bob Harman) -
Millerite on Quartz
Harrodsburg area, Clear Creek Township, Monroe County, Indiana, USA
both examples are about 10 cm. The millerite stran (Author: Bob Harman) -
Millerite on Quartz
Harrodsburg area, Clear Creek Township, Monroe County, Indiana, USA
The millerite spray is 1.5 cm (Author: Bob Harman) -
Millerite with Calcite
Keokuk Co., Iowa, USA
Detail (Author: am mizunaka)
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Millerite with Calcite
Keokuk Co., Iowa, USA
5 x 4 x 3.8 cm (Author: am mizunaka)
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Millerite, Dolomite
Reden shaft, Schiffweiler, Saarland, Germany
Picture width: 7 cm (Author: Andreas Gerstenberg)
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Millerite, hauchecornite, sphalerite
Friedrich mine, Wissen, Siegerland, Rhineland-Palatinate, Germany
6 x 4 cm (Author: Andreas Gerstenberg)
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Millerite
Halls Gap,
Lincoln Co., Kentucky
5.4cm x 4.2cm (Author: rweaver)
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Millerite
Halls Gap, Lincoln County, Kentucky, USA
6 cm. high
Photo: Jeff Scovil (Author: Jordi Fabre)
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Millerite
Meikle Mine, Boostrap District
Elko County, Nevada
Specimen size 3.5 x 3.5 cm. (Author: am mizunaka)
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Millerite
Warndt Mine, Großrosseln, Saarbrücken, Saarland, Germany
2 cm (Author: Andreas Gerstenberg) -
Millerite
Reden Shaft, Landsweiler, Schiffweiler, Neunkirchen District, Saarland, Germany
Picture width: approx. 8 cm (Author: Andreas Gerstenberg) -
Mimetite
Badenweiler, Black Forest, Baden-Württemberg, Germany
11 x 8 cm
Collection & Photo: Tobias Martin (Author: Tobi)
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Mimetite
Dry Gill Mine, Caldbeck Fells, Cumbria, England, UK
Dark green mimetite balls to 10mm with a secondary coating of lighter green pyromorphite? (Author: ian jones)
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Mimetite
Dry Gill Mine, Caldbeck Fells, Cumbria, England, UK
Brown mimetite balls to 12mm on botryoidal manganese (hollandite?) with associated white baryte (Author: ian jones)
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Mimetite
Michael mine, Weiler, Black Forest, Baden-Württemberg, Germany
Largest crystal: 1 x 0,15 cm (Author: Andreas Gerstenberg)
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Mimetite
Wheal Unity, St Day, Cornwall, England, UK
crystals to 20mm, on quartz (Author: ian jones)
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Mimetite (variety Campylite)
Dry Ghyll, Caldbeck Fells, Cumbria, England, UK
2 cm wide (Author: Roger Warin)
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Mimetite (variety campylite) and Baryte
Dry Gill Mine, Caldbeck Fells, Allerdale, former Cumberland, Cumbria, England / United Kingdom
5mm crystals campylite 10mm baryte (Author: Forrestblyth) -
Mimetite (variety campylite)
Dry Gill Mine, Caldbeck Fells, Allerdale, former Cumberland, Cumbria, England / United Kingdom
5mm crystals (Author: Forrestblyth) -
Mimetite on manganese oxides.
Dry Gill, Caldbeck Fells, Cumbria, England, UK.
8 mm wheatsheaf on 4 cm matrix. (Author: Ru Smith)
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Mimetite
Badenweiler mining area, Badenweiler, Black Forest, Baden-Württemberg, Germany
Specimen size ~ 16 cm (Author: Tobi) -
Mimetite
Dry Gill Mine, Caldbeck Fells, Allerdale, former Cumberland, Cumbria, England / United Kingdom
12x9x5 cm overall size (Author: Jesse Fisher) -
Mimetite
Su Zurfuru Mine, Fluminimaggiore, Sud Sardegna Province, Sardinia/Sardegna, Italy
47 x 32 mm (Author: Sante Celiberti) -
Minerva #1 Mine. 4.5 x 5.5 cm (Author: crosstimber)
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MiningTownRPPC2-1.jpg (Author: vic rzonca)
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Molibdenite
Perda de Pibera Mine, Gonnosfanadiga, Sud Sardegna Province, Sardinia/Sardegna, Italy
11 x 7 cm (Author: Sante Celiberti) -
Molibdenite
Perda de Pibera Mine, Gonnosfanadiga, Sud Sardegna Province, Sardinia/Sardegna, Italy
11 x 7 cm (Author: Sante Celiberti) -
Molybdenite
Königshain, Görlitz, Upper Lusatia, Saxony, Germany
3 x 2 cm (Author: Andreas Gerstenberg)
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Molybdenite
Perda de Pibera Mine, Gonnosfanadiga, Sud Sardegna Province, Sardinia/Sardegna, Italy
34 x 32 mm (Author: Sante Celiberti) -
Molybdenite
Perda de Pibera Mine, Gonnosfanadiga, Sud Sardegna Province, Sardinia/Sardegna, Italy
34 x 32 mm (Author: Sante Celiberti) -
Molybenite with Galena and Stilbite
Jones Falls Quarries, Baltimore, Maryland, USA
7.3 cm. x 4.9 cm. x 3 cm.
Molybenite with Galena and Stilbite on Gneiss. Collected by Walter E. Price in 1934. The Jones Falls Quarries produced the first molybdenite to be reported in the United States. (Author: jakslagle)
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Montgomeryite
Tip Top Mine, Fourmile, Custer District, Custer Co., South Dakota, USA
Specimen size: 3.7 x 7.5 cm.
Sprays Montgomeryite to 3 mm. (Author: crosstimber)
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Montroydite
Perry Pit, west side, California hill, Mariposa Mine, California Hill, Terlingua Mercury District, Brewster County, Texas, USA
1.8 cm long.
This tiny crystal is 1.8 cm long. Montroydite is perfectly sectile normal to the c-axis. It is so flexible that the crystals can be bent, and even tied into knots. There are old texts that illustrate this. Had to throw in a rarity. I have a suite of the oxychlorides of mercury, but they are very difficult to photograph, and to be truthful, kind of boring unless you are a species collector. Miguel Romero got my best Gianellaite, the finest in the world. Wonder where that specimen wound up?. (Author: Ed Huskinson)
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Muscovite book specimen 12 cm in length, 2 cm thick.
Woodlawn Quarry, Wilmington, Delaware, USA
Another self-collected specimen from the Woodlawn Quarry, Wilmington, DE. This is a typical glinting pegmatite from this site composed of muscovite, white plagioclase, and quartz. Occasionally these pegmatites feature almandine as an accessory mineral. (Author: Jordi Fabre)
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Natrolite
Hurricane Cliffs, New Harmony, Washington Co., Utah, USA
FOV 3 cm (Author: crosstimber)
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Natrolite
Millington Quarry, Bernards Township, Somerset County, New Jersey, USA
7.6 x 7 cm
Natrolite spheres to 1.5 cm on scoria (Author: Frank Imbriacco)
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Natrolite
Snake (Laurel Hill), New Jersey, USA
1 cm (Author: John Medici)
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Natrolite
Upper New Street Quarry, Paterson, New Jersey, USA
6 cm. (Author: Gary Moldovany)
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Natrolite and datolite
Upper New Street quarry, Paterson, Passaic County, New Jersey, USA
8.8 x 7.5 cm
Natrolite sprays atop datolite (Author: Frank Imbriacco)
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Natrolite and pectolite
Millington Quarry, Bernards Township, Somerset County, New Jersey, USA
5 x 4.2 cm
Natrolite crystals to 2.5 cm on pectolite (Author: Frank Imbriacco)
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Natrolite and prehnite
Millington Quarry, Bernards Township, Somerset Sounty, New Jersey, USA
8.8 x 5 cm
Translucent natrolite crystals to 2.8 cm on prehnite (Author: Frank Imbriacco)
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Natrolite with Prehnite & Laumontite
Sowerbutt Quarry, Prospect Park, New Jersey, USA
6 cm across
I collected this at the top of a quarry bench. When the overseer realized that numerous pockets of natrolites were there, I was ushered away from there (He collected and sold minerals on the side.). (Author: John Medici)
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Natrolite, Phillipsite-Ca, Tacharadite
Palagonia, Metropolitan City of Catania Province, Sicily, Italy
51 x 36 mm (Author: Sante Celiberti)Natrolite, Phillipsite-Ca, Tacharadite
Palagonia, Metropolitan City of Catania Province, Sici -
Natrolite, Phillipsite-Ca, Tacharadite
Palagonia, Metropolitan City of Catania Province, Sicily, Italy
51 x 36 mm (Author: Sante Celiberti)Natrolite, Phillipsite-Ca, Tacharadite
Palagonia, Metropolitan City of Catania Province, Sici -
Natrolite
Knife River, St. Louis County, Minnesota, USA
9 X 6 X 3.5 cm
A 4.5 cm pocket filled with natrolite or a closely related species. (Author: John Nash)
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Natrolite
Zeilberg Quarry, Maroldsweisach, Haßberge, Lower Franconia/Unterfranken, Bavaria/Bayern, Germany
47 mm (Author: Gerhard Brandstetter) -
Natrolite
Upper New Street Quarry, Paterson, Passaic County, New Jersey, USA
5.8 x 3.3 cm (Author: Frank Imbriacco) -
Natural quartz sphere with crystal faces
Fonda, Mohawk Township, Montgomery Co., New York, USA
2 cm. (Author: vic rzonca)
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Nepheline
Ringseitert, Kirchweiler, Daun, Eifel, Rhineland-Palatinate, Germany
60X
A complex pink hexagonal prism of nepheline. (Author: prcantos)
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Nepheline, leucite, pyroxene group
Ringseitert, Kirchweiler, Daun, Eifel, Rhineland-Palatinate, Germany
50X
A pink hexagonal prism of nepheline (center), a colourless leucite trapezohedron (top left) and dark olive translucent tabular pyroxene crystals (possibly enstatite). The specimen contains also apatite needles (not visible here). (Author: prcantos)
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Neptunite on crossite and natrolite matrix with tiny joaquinite crystals. Benitoite Gem Mine, San Benito Co., California. 8,5 x 6 cm. Main crystal measures 2 cm. (Author: Antonio Alcaide)
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Nice Barite miniature, Palm Park, Dona Ana County, NM. (Author: Darren)
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Nicely zoned baryte, largest crystal 6cm. Purchased Munich 1988.
Ex E Mitchell Gunnell collection no 153. Rear of the Gunnell label notes that the specimen was "purchased on June 27 1953, from D. O. Thorpe who, with partner, had purchased the John Rohner Collection, Idaho Springs, Colorado, from George Van Der Vere, curio store owner" and gives the "pro-rata cost, as $5". Prices have drifted upward since! (Author: ian jones)
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Nickeline
Hohenthal Schacht (Hans Seidel Shaft), Helbra, Mansfeld Basin, Saxony-Anhalt/Sachsen-Anhalt, Germany
5 x 3,5 cm (Author: Andreas Gerstenberg) -
Nickeline
Nieddoris Mine, Arbus, Medio Campidano Province, Sardinia/Sardegna, Italy
95 x 68 mm (Author: Sante Celiberti) -
South Crofty Mine, Northern Branch lode, Pool, Camborne - Redruth - Saint Day District, Cornwall, England / United Kingdom
(Author: markbeckett) -
Oboyerite (Author: Peter Megaw)
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Obsidian ’Apache tears’ on perlite. Apache tears locality, Picketpost Mountain Area, Superior, Pinal Co., Arizona. 8 x 5,5 cm. (Author: Antonio Alcaide)
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Obviously this is a reasonably commmon mineral but the habit here seemed worthy of a photograph. This Tremolite is from the Grace Mine, in Berks County, Pennsylvania. The specimen is 1 1/4" (3.18 cm). (Author: Jim Prentiss)
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Octahedral Fluorite
William Wise Mine, Westmoreland, Cheshire County, New Hampshire, USA
Mined in 1990
Former John H. Marshall Collection
Specimen size: 8.9 × 5.7 × 4.6 cm.
Main crystal size: 6.3 × 4.5 cm.
Fluorescent long & short UV (Author: Jordi Fabre)
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Octahedral green Fluorite, O.T.E. Prospect, Grant County, NM. Actually about 10 cm. at it’s widest. (Author: Darren)
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Odin contemplates a large chunk of opalized wood from Sickenius mine. (Author: Paul Bordovsky)
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Offretite epitactic on Levyne, in broken cross-section.
Beech Creek, Grant County, Oregon, USA
Specimen is about 1 cm wide. (Author: Pete Richards)
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Ohio-Michigan fluorite localities (Author: John Medici)
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Oligoclase "sunstone", with oriented copper inclusions
Plush, Oregon, USA
Field of view uncertain, but well less than 1 mm. (Author: Pete Richards)
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Olivenite with Malachite
Wheal Gorland, Saint Day, Camborne - Redruth - Saint Day District, Cornwall, England / United Kingdom
Main crystal size: 0.4 × 0.1 cm (Author: Jordi Fabre) -
Olivine (forsterite) phenocrysts, with minor pyroxene in a ground mass of plagioclase feldspar. Kilauea volcano, Hawaii. FOV is about 3 mm. (Author: Jesse Fisher)
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One of my favorites! Calcite after Wulfenite, Stephenson-Bennett Mine, Dona Ana County, NM. About 4 cm. Collected from the dumps in 2002. (Author: Darren)
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One of my favourites. Simple in its beauty. Hanksite. Searles Lake, Trona, San Bernardino Co., California. Interesting species both sulphate and carbonate. Perfect hexagonal crystal with two pinacoids. 9,5 x 5,5 cm. (Author: Antonio Alcaide)
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Opal (variety hyalite) on quartz
Monroe County, Indiana, USA
opal area is 2 cm (Author: Bob Harman) -
Opal (variety hyalite) on quartz
Monroe County, Indiana, USA
opal area is 2 cm (Author: Bob Harman) -
Opal (variety hyalite) on quartz
Monroe County, Indiana, USA
geode is 11 cm, the opal area is 2 cm (Author: Bob Harman) -
Opal (variety hydrophane)
Gröppendorf, Wermsdorf, Nordsachsen District, Saxony/Sachsen, Germany
Specimen size 2,3 cm (Author: Tobi) -
Opal
Klipphausen, Meissen, Saxony/Sachsen, Germany
8 cm (Author: Tobi) -
Opalized wood
Sickenius mine, Karnes Uranium District, Karnes Co., Texas, USA (Author: Paul Bordovsky)
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Ore teams and more in Idaho Springs, Colorado, 1894. (Author: vic rzonca)
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Orpiment
Twin Creeks mine, Humboldt Co., Nevada, USA
4 cm across (Author: John S. White)
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Orthoclase
9.5cm x 7.2cm (Author: rweaver)
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Orthoclase Karlsbad twin altering to kaolinite.
Melbur China Clay Pit, St Austell, Higher Fraddon, Cornwall, England, UK.
32 mm. (Author: Ru Smith)
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Orthoclase
Enfola Cape, Portoferraio, Elba Island, Livorno Province, Tuscany, Italy
63 x 60 mm (Author: Sante Celiberti) -
Orthoclase
Enfola Cape, Portoferraio, Elba Island, Livorno Province, Tuscany, Italy
50 x 45 mm (Author: Sante Celiberti) -
Osumilite
Obsidian Cliffs, North Sister Mountain, Lane County, Oregon, USA
Crystal about 1 mm across. (Author: Pete Richards)
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Osumilite, Tridymite
Funtanafigu Quarry, Marrubiu, Arci Mountain, Oristano Province, Sardinia/Sardegna, Italy
12 x 10 cm (Author: Sante Celiberti) -
Osumilite, Tridymite
Funtanafigu Quarry, Marrubiu, Arci Mountain, Oristano Province, Sardinia/Sardegna, Italy
12 x 10 cm (Author: Sante Celiberti) -
P6241561a.jpg (Author: Paul Bordovsky)
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P6241562a.jpg (Author: Paul Bordovsky)
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Pachan with Barite specimen
Desert Rose claim, Bingham, NM
heavy (Author: John Medici)
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Palygorskite and Calcite, Morenci, about 10 cm. (Author: Darren)
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Pant-y Gaseg adit, driven c1860. The adit crops out half way down a cliff and is very well hidden. Photo taken 8 July 2009. (Author: ian jones)
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Papagoite
New Cornelia Mine, Ajo, Little Ajo Mountains, Ajo District, Pima County, Arizona, USA
5.6cm x 4.3cm (Author: rweaver) -
Paracelsian
Bennalt mine, Lleyn Peninsular, Caernarvonshire, Wales, uk
Exceptional group of paracelsian crystals - the large doubly terminated crystal is 50mm. Ex collection Natural History Museum, London.
Specimen obtained by the Natural History Museum from Sir Arthur Russell in 1941, who in turn obtained it from G.J. Williams, the former Assistant Inspector for Metalliferous Mines and Quarries for the North Wales and Ireland Division. Specimen originally collected in 1919. (Author: ian jones)
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Parakhinite (Author: Peter Megaw)
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Paralaurionite
Yellow paralaurionite 25x15mm (Author: ian jones)
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Park Level portal, Killhope Mine. (Author: Ru Smith)
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Pectolite
Millington Quarry, Bernards Township, Somerset County, New Jersey, USA
9.5 x 6.8 cm
Pink pectolite epimorphs after anhydrite to 5.5 cm with attached micro prehnite spheres (Author: Frank Imbriacco)
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Pectolite
Prospect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
9 x 8 cm
Pectolite spheres to 1.4 cm on quartz with heulandite and blue babingtonite (Author: Frank Imbriacco)
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Pectolite and apophyllite
Castle Danger, Minnesota, USA
The pectolite spray is 2 cm across (Author: John Nash)
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Pectolite and datolite
Millington Quarry, Bernards Township, Somerset Quarry, New Jersey, USA
8.8 x 7.3 cm
Likely the finest red pectolite from this locale with spheres to 2.3 cm (Author: Frank Imbriacco)
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Pectolite and datolite
Millington Quarry, Bernards Township, Somerset County, New Jersey, USA
6 x 5 cm
Pink pectolite spheres on datolite peppered with micro hematite crystals (Author: Frank Imbriacco)
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Pectolite and datolite
Millington Quarry, Bernards Township, Somerset County, New Jersey, USA
7.3 x 6.2 cm
Pectolite spheres to 1.5 cm on datolite (Author: Frank Imbriacco)
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Pectolite and Datolite
Millington Quarry, Bernards Township, Somerset County, New Jersey, USA
8.5 x 7.3 cm (Author: Frank Imbriacco) -
Pectolite and natrolite
Millington Quarry, Bernards Township, Somerset County, New Jersey, USA
7.9 x 4.4 cm
Pectolite spheres to 1.6 cm with natrolite (Author: Frank Imbriacco)
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Pectolite
Castle Danger, the Rock Yard, Minnesota, USA
About 5 X 9 X 9 cm
Radiating clusters of Pectolite crystals and another mineral, possibly xonotlite, in a dark green mix of augite and plagioclase altered to prehnite. About 5 X 9 X 9 cm, the specimen is an amygdule containing the pectolite, surrounded by prehnite. This was described in a 1924 article by G. M. Schwartz of the U of MN in the American Mineralogist, pp. 83 - 88. (Author: John Nash)
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penetration twin fluorite (8 cm across), Denton Mine (Author: Jesse Fisher)
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Pentlandite, pyrrhotite
Nickel mine, Sohland, Upper Lusatia, Saxony, Germany
6 x 6 cm (Author: Andreas Gerstenberg)
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Petrified Wood
about 5 miles north west of Ocotillo on the San Diego Imperial county line.
13.3cm x 19.2cm (Author: rweaver)
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Pharmacosiderite
Hemerdon Bal Mine, Plympton, Devon, England, UK
Pharmacosiderite crystal 5x4mm.
This is very large for the UK. It was found when the locality was reworked for scorodite specimens in 2006. (Author: ian jones)
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Phillipsite
Limberg Quarries, Sasbach, Kaiserstuhl, Baden-Württemberg, Germany
175X
Some phillipsite "flowers". (Author: prcantos)
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Phillipsite
Limberg Quarries, Sasbach, Kaiserstuhl, Baden-Württemberg, Germany
175X
Phillipsite showing radiating habit covers the surface of the cavities. (Author: prcantos)
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Phillipsite
Sugar Grove, Pendleton County, West Virginia, USA
Twinned phillipsite crystal. The crystal is 0.4 mm across the top edges. Composite of 12 images. (Author: Pete Richards)
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Phosgenite, Anglesite, Galena
Monteponi Mine, Iglesias, Sud Sardegna Province, Sardinia/Sardegna, Italy
77 x 67 mm (Author: Sante Celiberti) -
Phosgenite, Anglesite, Galena
Monteponi Mine, Iglesias, Sud Sardegna Province, Sardinia/Sardegna, Italy
77 x 67 mm (Author: Sante Celiberti) -
Phosgenite, Galena
Monteponi Mine, Iglesias, Sud Sardegna Province, Sardinia/Sardegna, Italy
90 x 77 mm (Author: Sante Celiberti) -
Phosgenite
Monteponi Mine, Iglesias, Sud Sardegna Province, Sardinia/Sardegna, Italy
30 x 15 mm (Author: Sante Celiberti) -
Phosgenite
Monteponi Mine, Iglesias, Sud Sardegna Province, Sardinia/Sardegna, Italy
42 x 38 mm (Author: Sante Celiberti) -
Phosgenite
Monteponi Mine, Iglesias, Sud Sardegna Province, Sardinia/Sardegna, Italy
42 x 38 mm (Author: Sante Celiberti) -
Phosgenite
Monteponi Mine, Iglesias, Sud Sardegna Province, Sardinia/Sardegna, Italy
84 x 80 mm (Author: Sante Celiberti) -
Phosgenite
Monteponi Mine, Iglesias, Sud Sardegna Province, Sardinia/Sardegna, Italy
84 x 80 mm (Author: Sante Celiberti) -
Phosgenite
Monteponi Mine, Iglesias, Sud Sardegna Province, Sardinia/Sardegna, Italy
96 x 72 mm (Author: Sante Celiberti) -
Phosgenite
Monteponi Mine, Iglesias, Sud Sardegna Province, Sardinia/Sardegna, Italy
96 x 72 mm (Author: Sante Celiberti) -
Phosgenite
Monteponi Mine, Iglesias, Sud Sardegna Province, Sardinia/Sardegna, Italy
90 x 77 mm (Author: Sante Celiberti) -
Phosgenite
Monteponi Mine, Iglesias, Sud Sardegna Province, Sardinia/Sardegna, Italy
28 x 25 mm (Author: Sante Celiberti) -
Phosphophyllite
Hagendorf, Waidhaus, Oberpfälzer Wald, Upper Palatinate/Oberpfalz, Bavaria/Bayern, Germany
28 mm (Author: Gerhard Brandstetter) -
Phosphophyllite
Hagendorf, Waidhaus, Oberpfälzer Wald, Upper Palatinate/Oberpfalz, Bavaria/Bayern, Germany
Main crystal size: 0.2 × 0.1 cm (Author: Jordi Fabre) -
Phosphorite
Friedland clay pit, Neubrandenburg, Mecklenburg-West Pomerania, Germany
8 x 8 cm (Author: Andreas Gerstenberg)
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Phytosaur (ancestral crocodilian)
Palo Duro Canyon area, Armstrong Co., Texas, USA
Total length of the vertebra is 6.5 cm.
Wonder of wonders!! When I got home after finding the second bone, I discovered that the two pieces fit together perfectly. Two years and over 50 meters apart. Total length of the vertebra is 6.5 cm. (Author: Ed Huskinson)
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Phytosaur (ancestral crocodilian)
Palo Duro Canyon area, Armstrong Co., Texas, USA
3.5 cm. X 6.5 cm.
Another partial Phytosaur vertebra. 3.5 cm X 6.5 cm This was found in the same area (about 50 meters or so away) while on a geology field trip two years later (in 1967). (Author: Ed Huskinson)
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Phytosaur (ancestral crocodilian)
Palo Duro Canyon area, Armstrong Co., Texas, USA
3 cm. X 5.5 cm.
Here’s a shot of the inside of the bone. You can see the cell structures. (Author: Ed Huskinson)
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Phytosaur (ancestral crocodilian)
Palo Duro Canyon area, Armstrong Co., Texas, USA
3 cm. X 5.5 cm.
Phytosaur (ancestral crocodilian)
partial vertebra. 3 cm X 5.5 cm. Palo Duro Canyon, near Canyon, Texas. I found this fossil on my senior high school class field trip / picnic in April of 1965 (Author: Ed Huskinson)
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Picromerite (Schönit)
Neuhof-Ellers Potash Works, Neuhof, Fulda, Hesse/Hessen, Germany
10 cm (Author: Gerhard Brandstetter) -
Pink Quartz with Eosphorite and Albite
Newry, Oxford Co., Maine
Specimen size 6 x 5.3 cm. (Author: am mizunaka)
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Polybasite, Cerussite, Malachite
Montevecchio Mines, Guspini, Sud Sardinia Province, Sardinia/Sardegna, Italy
80 x 60 mm (Author: Sante Celiberti) -
Polybasite, Cerussite, Malachite
Montevecchio Mines, Guspini, Sud Sardinia Province, Sardinia/Sardegna, Italy
80 x 60 mm (Author: Sante Celiberti) -
Polybasite, Cerussite, Malachite
Montevecchio Mines, Guspini, Sud Sardinia Province, Sardinia/Sardegna, Italy
80 x 60 mm (Author: Sante Celiberti) -
Polybasite, Cerussite, Malachite
Montevecchio Mines, Guspini, Sud Sardinia Province, Sardinia/Sardegna, Italy
80 x 60 mm (Author: Sante Celiberti) -
Precious Opal
Stonetree Opal Mine Group, Virgin Valley, Humboldt County, NV, USA
4.0 x 3.5 cm (Author: Chris Wentzell)
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Precious Opal
Stonetree Opal Mine Group, Virgin Valley, Humboldt County, NV, USA
4.0 x 3.5 cm (Author: Chris Wentzell)
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Prehnite
Lower New Street quarry, Paterson, New Jersey, Passaic County, New Jersey, USA
12 x 8.8 cm
Prehnite epimorphs after anhydrite; a former U.S National Museum specimen (Author: Frank Imbriacco)
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Prehnite
Lower New Street Quarry, Paterson, Passaic County, New Jersey, USA
9 x 8.7 cm
Knobby, botryoidal prehnite after anhydrite with a look similar to the best arsenian pyromorphite from Bunker Hill (Author: Frank Imbriacco)
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Prehnite
Lower New Street quarry, Paterson, Passaic County, New Jersey, USA
6 x 4.7 cm
Prehnite epimorphs after anhydrite (Author: Frank Imbriacco)
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Prehnite
Martin Marietta Quarry, Hickory, North Carolina, USA
Taken at 50x, field of view is 2.25 mm wide.
Prehnite (single crystals) (Author: Pete Richards)
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Prehnite
Millington Quarry, Bernards Township, Somerset County, New Jersey, USA
7 x 6 cm
A 2.7 cm prehnite sphere in a datolite vug (Author: Frank Imbriacco)
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Prehnite
Millington, New Jersey, USA
1.8 cm ring
This one looks like it originally formed on an anhydrite (small cast is present which terminates the 2nd ring). (Author: John Medici)
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Prehnite
Prospect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
9.8 x 8.7 cm
Radiating spray of prehnite epimorphs after anhydrite (Author: Frank Imbriacco)
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Prehnite
Prospect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
10.3 x 7.2 cm
Prehnite epimorphs after anhydrite covered with lustrous calcite crystals (Author: Frank Imbriacco)
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Prehnite
Prospect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
3.5 x 3.2 cm
Prehnite sphere with micro calcite crystals (Author: Frank Imbriacco)
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Prehnite
Prospect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
13.3 x 9.6 cm
Prehnite epimorphs after anhydrite (Author: Frank Imbriacco)
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Prehnite
Prospect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
14.2 x 8.8 cm
Blue prehnite spheres to 1.3 cm with calcite, caused by a coating of pumpellyite (Author: Frank Imbriacco)
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Prehnite
Upper New Street Quarry, Paterson, Passaic County, New Jersey, USA
9 x 9 cm
A 6 cm prehnite epimorph after anhydrite centered among smaller epimorphs (Author: Frank Imbriacco)
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Prehnite
Vulkan quarry, Urenkopf, Hausach, Black Forest, Baden-Württemberg, Germany
6,5 x 4 cm (Author: Andreas Gerstenberg)
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Prehnite
Weldon Quarry, Watchung, Somerset County, New Jersey, USA
12.5 x 11 cm
Prehnite epimorphs after glauberite from a find in 1987; former Herb Obodda Collection (Author: Frank Imbriacco)
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Prehnite
Sowerbutt Quarry, Prospect Park, New Jersey, USA
6 cm across
(back of the natrolite specimen). A "floater" - most trap rock minerals in this North Jersey area are much harder to collect intact! (Author: John Medici)
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Prehnite and calcite
McBride Avenue and Browertown Road Pumping Station, Woodland Park, Passaic Couny, New Jersey, USA
12 x 10 cm
From an excavation in 1986 which produced countless numbers of specimens of prehnite after anhydrite with a look different from those of other nearby localities. (Author: Frank Imbriacco)
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Prehnite and calcite
Prospect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
7.9 x 6.9 cm
Prehnite spheres to 1.7 cm with micro calcite crystals (Author: Frank Imbriacco)
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Prehnite and calcite
Upper New Street quarry, Paterson, Passaic County, New Jersey, USA
6.9 x 7 cm
Prehnite spheres to 1.8 cm on calcite (Author: Frank Imbriacco)
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Prehnite and calcite
Weldon Quarry, Watchung, Somerset County, New Jersey, USA
12.5 x 8.6 cm
Calcite crystals to 3.2 cm on prehnite epimorphs after glauberite (Author: Frank Imbriacco)
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Prehnite and calcite
Weldon Quarry, Watchung, Somerset County, New Jersey
8.2 x 6.5 cm
A prehnite coated calcite rhombohedron with prehnite after glauberite epimorphs, sandwiched by a 6 cm second generation calcite crystal (Author: Frank Imbriacco)
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Prehnite cast after anhydrite
Lane Quarry, Hampden County, Massachusetts, USA
!2 x 6 cm.
Reverse (Author: vic rzonca)
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Prehnite cast after anhydrite
Lane Quarry, Hampden County, Massachusetts, USA
!2 x 6 cm. (Author: vic rzonca)
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Prehnite epimorphs of laumontite
Knife River, St. Louis County, Minnesota, USA
6 X 5 X 4 cm
Beautiful orange prehnite epimorphs of laumontite. (Author: John Nash)
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Prehnite epimorphic on Anhydrite with Laumontite
Prospect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
27.5 x 19.8 x 14.2 cm (Author: Frank Imbriacco)Prehnite epimorphic on Anhydrite with Laumontite
Prospect Park Quarry, Prospect Park, Passaic Coun -
Prehnite epipmorphs of laumontite
Knife River, St. Louis County, Minnesota, USA
5 cm field of view (Author: John Nash)
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Prehnite on calcite
Diabase Quarry, Hartenrod, Gladenbach, Dillenburg, Lahn-Dill-Kreis District, Gießen Region, Hesse/Hessen, Germany
Specimen size 18 cm (Author: Tobi) -
Prehnite ps. anhydrite
Lane Quarry, Westfield, Massachusetts, USA
3.3 x 6.0 cm. (Author: crosstimber)
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Prehnite single crystal 1 mm long. Virginia Crushed Stone Company Quarry, Centerville, Virginia. RPR uncataloged specimen. (Author: Pete Richards)
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Prehnite with Epidote
Fairfax quarry, Centreville, Fairfax County, Virginia, USA
9.8 cm tall.
Photo & Collection: John S. White (Author: Jordi Fabre)
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Prehnite, 10 cm. in diameter vug, Southbury, CT. (Author: vic rzonca)
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Prehnite, 10x12 cm. (Author: vic rzonca)
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Prehnite, calcite with minor datolite.
Lane / Hampden Quarries, Westfield, Massachusetts, USA
14x10 cm. (Author: vic rzonca)
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Prehnite, minor copper
Knife River, St. Louis County, Minnesota, USA
8 X 6 X 5 cm
Gemmy light green prehnite, some copper inside. (Author: John Nash)
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Prehnite, pectolite, calcite
Rauschermühle quarry, Niederkirchen, Rhineland-Palatinate, Germany
9,5 x 6,5 cm
Old find from the 1950s. (Author: Andreas Gerstenberg)
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Prehnite
Arlington Quarry
Leesburg
Loudoun Co,, Virginia
United States of America
86 x 68 x 21 cm overall
with 5 mm crystals (Author: GneissWare)
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Prehnite
Knife River, St. Louis County, Minnesota, USA
Field of view about 6 cm
The light blue iridescence on this orange prehnite is stunning. (Author: John Nash)
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Prehnite
Knife River, St. Louis County, Minnesota, USA
9 X 7 X 4
Orange iridescent prehnite. So lovely in person, look at the close-up! Another one-time find, one boulder from the river, discovered by my son Greg. (Author: John Nash)
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Prehnite
Knife River, St. Louis County, Minnesota, USA
Field of view 2.5 cm
Most remarkable iridescent orange prehnite, metallic blue and purple flashes are amazing in person. I’ve found only a few examples in 5 years of visiting the locale. (Author: John Nash)
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Prehnite
Knife River, St. Louis County, Minnesota, USA
Field of view 4.5 cm (Author: John Nash)
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Prehnite
Knife River, St. Louis County, Minnesota, USA
Field of view 11 cm (Author: John Nash)
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Prehnite
Knife River, St. Louis County, Minnesota, USA
19.5 X 10 X 10 cm approximately
This orange prehnite shows partial casts after laumontite, the largest cast is about 2 cm. The prehnite glitters with gold and some blue iridescence. (Author: John Nash)
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Prehnite
New Street Quarry
Paterson, New Jersey
6.3cm x 3.7cm (Author: rweaver)
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Prehnite
O & G Quarry, Southbury, Connecticut, USA
96 x 75 x 50 mm
Photo and Specimen: nurbo (Author: Jordi Fabre)
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Prehnite
Schönlautenbach, Idar-Oberstein, Birkenfeld, Rhineland-Palatinate/Rheinland-Pfalz, Germany
Specimen size 12-15 cm (Author: Tobi) -
Prehnite
Andesite Quarry, Kreimbach-Kaulbach, Lauterecken-Wolfstein, Kusel, Rhineland-Palatinate/Rheinland-Pfalz, Germany
17 mm (Author: Gerhard Brandstetter) -
Prehnite
Burgberg Quarry (Trautvetter Quarry), Marburg-Biedenkopf District, Gießen Region, Hesse/Hessen, Germany
approx. 25 cm (Author: Tobi) -
Prismatine
Granulite outcrop, Waldheim, Döbeln, Saxony, Germany
2’5 x 3’5 cm.
Long dark prismatine crystals in a classical granulite. (Author: prcantos)
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Prismatine
Waldheim, Saxony, Germany
8 x 5,5 x 4 cm
From the original find described by A. Sauer (1886) (Author: Andreas Gerstenberg)
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Proustite, Acanthite
Monte Narba Mine, San Vito, Narba Mountain, Sud Sardegna Province, Sardinia/Sardegna, Italy
35 x 26 mm (Author: Sante Celiberti) -
Proustite
Churprinz Friedrich August Erbstolln Mine (Churprinz Mine), Großschirma, Freiberg District, Erzgebirgskreis, Saxony/Sachsen, Germany
Picture width: approx. 7 cm (Author: Andreas Gerstenberg) -
Proustite
Freiberg District, Erzgebirgskreis, Saxony/Sachsen, Germany
20 x 10 mm (Author: Sante Celiberti) -
pseudo
Graves Mt., GA
(1 cm ring) (Author: John Medici)
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pseudo
Graves Mt., GA
6 cm across (Author: John Medici)
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pseudo (side view of next photo)
Graves Mt., GA
(1 cm ring) (Author: John Medici)
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Pseudomalachite on Chrysocolla pseudos of Libethinite, South Rim Pit, Tyrone Mine, Grant County, NM. Another thumbnail. (Author: Darren)
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Pseudomalachite
Borstein Quarry, Reichenbach, Lautertal (Odenwald), Bergstraße District, Darmstadt, Hesse/Hessen, Germany
5,5 x 4,5 cm (Author: Andreas Gerstenberg) -
Psilomelane, Socorro County, NM. Thumbnail. (Author: Darren)
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Psilomelane
Neunkirchen, Siegerland, North Rhine-Westphalia/Nordrhein-Westfalen, Germany
Approx. 15 cm (Author: Tobi) -
Pucherite
Pucher Shaft, Wolfgang Maaßen mine field, Schneeberg District, Erzgebirgskreis, Saxony/Sachsen, Germany
6 x 4 cm (Author: Andreas Gerstenberg) -
Pure Potential Mine (North Geronimo Mine), Silver district, Trigo Mountains, La Paz Co, Arizona. Size 3,5 X 2,5 cm. (Author: Vinoterapia)
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Pyrargyrite
König David mine, Annaberg, Erzgebirge, Saxony, Germany
5,5 x 4,5 cm (Author: Andreas Gerstenberg)
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Pyrargyrite
König David mine, Annaberg, Erzgebirge, Saxony, Germany
5,5 x 4,5 cm
Historic labels. Ex Hermann Loretz collection via Senckenberg museum/Frankfurt. (Author: Andreas Gerstenberg)
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Pyrargyrite
St. Andreasberg, St. Andreasberg District, Harz Mountains, Lower Saxony, Germany
Main rosette size: 0.7 × 0.5 cm
Former collection of Folch (duplicates)
Specimen & Photo: Reference Specimens (Author: Jordi Fabre)
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Pyrargyrite on Siderite
Annaberg District, Erzgebirge, Saxony, Germany
Group of Pyrargyrite crystals: 1.4 × 1.1 cm
Former collection of Folch duplicates
Photo: Reference Specimens (Author: Jordi Fabre)
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Pyrite
Duff quarry, Huntsville, Ohio, USA
around 2 cm field of view (Author: John Medici)
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Pyrite
Duff Quarry, Huntsville, Ohio, USA
2 cm field of view (Author: John Medici)
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Pyrite
Holenbrunn, Fichtelgebirge, Bavaria, Germany
1,5 cm crystal (Author: Andreas Gerstenberg)
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Pyrite
Parey sand pit, Spandau, Berlin, Germany
10 x 7 cm
Found in 1967. (Author: Andreas Gerstenberg)
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Pyrite
Rennselaer Quarry, Pleasant Ridge, Jasper Co., Indiana, USA
9 x 7 x 5 cm
Detail of the crystals (Author: Antonio Alcaide)
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Pyrite
Rennselaer Quarry, Pleasant Ridge, Jasper Co., Indiana, USA
9 x 7 x 5 cm
Octahedron modified by cube. I have read Maggie Wilson telling on Mindat the pyrites from this find are often unstable. I am going to enjoy it quickly just in case... (Author: Antonio Alcaide)
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Pyrite
Road Cut, Dallas County, Texas, USA
6 x 3 x 3 cm.
Collection and photo: Javier Ruiz Martin
Pyrite on a Pyrite nodule (Author: Jordi Fabre)
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Pyrite
Ross County, Ohio, USA
17 cm high (Author: John Medici)
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Pyrite
Ross County, Ohio, USA (Author: John Medici)
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Pyrite
Sugar Grove, Pendleton County, West Virginia, USA
Pyrite bar 0.5 mm long. (Author: Pete Richards)
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Pyrite
Trap Rock Industries Moores Station Quarry, Hopewell, Mercer County, New Jersey, USA
6.2 x 5.9 cm
A 2.5 cm pyrite crystal with chalcopyrite (Author: Frank Imbriacco)
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Pyrite
TXI Cement Quarry, Ellis Co., Texas, USA
13 x 8 x 8 cm
Detail of the pyrite cluster. The faces of the cubes show hillocks and the octahedral faces have cuboctahedral growths. Not very common!! (Author: Antonio Alcaide)
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Pyrite
TXI Cement Quarry, Ellis Co., Texas, USA
13 x 8 x 8 cm
Cluster of cuboctahedral crystals of pyrite on limestone. (Author: Antonio Alcaide)
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Pyrite & dolomite
Duff Quarry, Huntsville, Ohio, USA
6 cm field of view (Author: John Medici)
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Pyrite (diploid) on fluorite sheaves
Suever Quarry, Delphos, Ohio, USA
1 cm high (Author: John Medici)
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Pyrite (donated to Smithsonian) (pictured in ExtraLapis Pyrite issue (German))
Ross County, Ohio, USA (Author: John Medici)
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Pyrite (Jay Medici collection)
Ross County, Ohio, USA (Author: John Medici)
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Pyrite (longest found in past 45 years)
Ross County, Ohio, USA
52 inches long (Author: John Medici)
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Pyrite - Queen Hill Quarry, Plattsmouth, Nebraska Crystal size is 1.75 cm. (Author: crosstimber)
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Pyrite and Calcite
C. E. Duff & Son Quarry, Huntsville, Logan County, Ohio, USA
32 mm (Author: R Saunders) -
Pyrite and Marcasite
Wheal Nangiles, Twelveheads, Baldhu, Camborne - Redruth - Saint Day District, Cornwall, England / United Kingdom
10cm x 8cm (Author: markbeckett) -
Pyrite and Marcasite
Rensselaer Quarry, Rensselaer, Marion Township, Jasper County, Indiana, USA
12.7 cm x 11.5 cm x 7.6 cm (Author: R Saunders) -
Pyrite and nontronite
Sugar Grove, Pendleton County, West Virginia, USA
A right-angle pyrite bar mostly coated with nontronite. The bar is 0.9 mm tall. (Author: Pete Richards)
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Pyrite in fluorite
Duff quarry, Huntsville, Ohio, USA
Crystal 6 mm (Author: John Medici)
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Pyrite in limestone replacing a fossil shell
Georgia Quarry, Mitchell, Lawrence County, Indiana, USA
the shell is about 3.3 cm (Author: Bob Harman)Pyrite in limestone replacing a fossil shell
Georgia Quarry, Mitchell, Lawrence Count -
Pyrite in limestone
Georgia Quarry, Mitchell, Lawrence County, Indiana, USA
pyrite cubes up to 1.0 cm (Author: Bob Harman) -
Pyrite in schist, I-83 roadcut south of York, York Co. The crystal is 3 cm across. (Author: John S. White)
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Pyrite in talc
Carlton Mine, Chester, Windsor Co., Vermont, USA
4.3 x 5.8 cm (Author: crosstimber)
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Pyrite on Enargite
Butte, Silver Bow County, Montana, USA
Specimen size: 3.5 × 3.3 × 2 cm
Mined about 1955
Former collection of Folch duplicates
Photo: Reference Specimens (Author: Jordi Fabre)
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Pyrite on Galena
West Fork Mine, West Fork, Viburnum Trend District, Reynolds County, Missouri, USA
5 x 3 cm. (Author: Jordi Fabre) -
Pyrite with Fluorite
Climax Mine, Climax District, Lake Co., Colorado
Specimen size 2 x 1.9 x 2.3 cm. (Author: am mizunaka)
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Pyrite, Hematite
Rio Mine (Rio Marina Mine), Valle Giove stope, Rio Marina, Elba Island, Livorno Province, Tuscany, Italy
13,5 x 9,5 cm (Author: Sante Celiberti)
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