FMF Minerals Gallery

Galena
Sweetwater Mine, Ellington, Viburnum Trend District, Reynolds County, Missouri, USA
5.8 x 8.1 cm (Author: crosstimber)

Galena
Sweetwater Mine, Elling

Galena
Ballard Mine, Baxter Springs, Picher Field, Tri-State District, Cherokee County, Kansas, USA
9.0 x 14.0 cm (Author: crosstimber)

Galena
Ballard Mine, Baxter Sp

Gaudefroyite N’Chwaning II Mine, Kuruman, N. Cape Prov., South Africa 7.1 x 10.5 cm Closer view of above specimen. (Author: crosstimber)

Gaudefroyite N’Chwaning II M

Gaudefroyite N’Chwaning II Mine, Kuruman, N. Cape Prov., South Africa 7.1 x 10.5 cm Lustrous black crystals of gaudefroyite covering a druse of dark red andradite crystals. (Author: crosstimber)

Gaudefroyite N’Chwaning II M

Glauberite Lake Bumbunga, Lockiel, Mt. Lofty Ranges, South Australia 5.0 x 6.1 cm An intergrown group of colorless bladed glauberite crystals with a thin white coating of epsomite. (Author: crosstimber)

Glauberite Lake Bumbunga, Lockiel,

Goethite Irhoud Mine, Safi Province, Doukkala-Abda Region, Morocco 6.0 x 6.3 cm. Lustrous black botryoidal goethite. (Author: crosstimber)

Goethite Irhoud Mine, Safi Provinc

Goethite Lake George area, Park Co., Colorado 6.9 x 7.5 cm (Author: crosstimber)

Goethite Lake George area, Park Co

Goethite ps. after gypsum Santa Eulalia, Chihuahua, Mexico 6.7 x 7.7 cm. Black goethite forming perfect hollow epimorphs of gypsum crystals which are now gone. This piece is light as a feather. (Author: crosstimber)

Goethite ps. after gypsum Santa Eu

Goethite ps. Pyrite
Gachalá mining district, Matecaña Mine, Municipio Gachalá, Eastern Emerald Belt, Cundinamarca Department, Colombia
3.0 x 3.4 x 3.6 cm (Author: crosstimber)

Goethite ps. Pyrite
Gachalá m

Goethite ps. siderite - Sentinel Rock, El Paso Co., Colorado 5.6 cm (Author: crosstimber)

Goethite ps. siderite - Sentinel R

Goethite
Cedar Mountain, Mountain Valley, Jessieville, Garland County, Arkansas, USA
6.0 x 9.2 cm (Author: crosstimber)

Goethite
Cedar Mountain, Mount

Goethite
Smoky Hawk claim, Crystal Peak area, Teller County, Colorado, USA
2.4 x 2.5 cm (Author: crosstimber)

Goethite
Smoky Hawk claim, Cry

Goethite
Cedar Mountain, Mountain Valley, Jessieville, Garland County, Arkansas, USA
1.7 x 2.1 cm (Author: crosstimber)

Goethite
Cedar Mountain, Mount

Goethite
Lake George, Park County, Colorado, USA
2.5 x 3.0 cm (Author: crosstimber)

Goethite
Lake George, Park Cou

Gold Rosia Montana, Alba Co., Romania 3.2 cm. Formerly known as Verespatak, Rosia Montana was mined by the Romans 2000 years ago. (Author: crosstimber)

Gold Rosia Montana, Alba Co., Roma

Gold
Serra do Caldeirão claims, Pontes e Lacerda, Alto Guaporé District, Mato Grosso, Brazil
2.0 x 4.0 cm (Author: crosstimber)

Gold
Serra do Caldeirão claim

Gold
Farncomb Hill, French Gulch, Breckenridge, Breckenridge District, Summit County, Colorado, USA
2.1 x 2.9 cm (Author: crosstimber)

Gold
Farncomb Hill, French Gul

Gold
Colorado Quartz Mine, Colorado, Colorado District, Mother Lode Belt, Mariposa County, California, USA
2.0 x 2.6 cm (Author: crosstimber)

Gold
Colorado Quartz Mine, Col

Goosecreekite Pandulena Quarry, Nasik Dist., Maharashtra, India 5.0 x 5.8 cm. A colorless spherical aggregate of goosecreekite sitting on pale tan stilbite with pearly white heulandite. (Author: crosstimber)

Goosecreekite Pandulena Quarry, Na

Greenockite on sphalerite
Joplin Field, Tri-State District, Jasper County, Missouri, USA
5.5 x 7.0 cm, FOV=2.5 cm (Author: crosstimber)

Greenockite on sphalerite
Jopl

Grossular Dionboko, Kayes Region, Mali 3.3 x 3.5 cm An intergrown group of lustrous cinnamon-brown dodecahedral grossular crystals. (Author: crosstimber)

Grossular Dionboko, Kayes Region,

Grossular Jeffrey Mine, Asbestos, Estrie, Quebec, Canada 4.0 x 6.5 cm. Gemmy pale green grossular crystals to 2 mm with acicular microcrystals of green diopside on a mound of white matrix. (Author: crosstimber)

Grossular Jeffrey Mine, Asbestos,

Grossular Jeffrey Mine, Asbestos, Estrie, Quebec, Canada 3.5 x 4.6 cm. Small amounts of chromium are responsible for the green color in these garnets. (Author: crosstimber)

Grossular Jeffrey Mine, Asbestos,

Grossular York River Skarn, Dungannon Township, Hastings Co., Ontario, Canada 4.1 x 5.5 cm. Cinnamon brown grossular crystals to 5 mm with green diopside partially etched from colorless calcite. (Author: crosstimber)

Grossular York River Skarn, Dungan

Grossular var. hessonite Jeffrey Mine, Asbestos, Estrie, Quebec, Canada 1.6 x 1.8 cm. Gemmy orange grossular var. hessonite with sharp growth patterns on the crystal faces. (Author: crosstimber)

Grossular var. hessonite Jeffrey M

Grossular
Jeffrey Mine, Asbestos, Les Sources RCM, Estrie, Québec, Canada
1.6 x 1.8 cm (Author: crosstimber)

Grossular
Jeffrey Mine, Asbest

Grossular
Jeffrey Mine, Asbestos, Les Sources RCM, Estrie, Québec, Canada
1.3 x 2.0 cm (Author: crosstimber)

Grossular
Jeffrey Mine, Asbest

Gummite Ruggles Mine, Grafton, Grafton Co., New Hampshire, USA 4.0 x 4.3 cm (Author: crosstimber)

Gummite Ruggles Mine, Grafton, Gra

Gypsum Angervillieres Quarry, Essone, Ile-de-France, France 4.4 x 7.3 cm An intersecting group of transparent gypsum crystals from an defunct locality just outside Paris. (Author: crosstimber)

Gypsum Angervillieres Quarry, Esso

Gypsum Boldut Mine, Cavnic, Maramures, Romania 5.0 x 7.5 cm. Stacked divergent white blades on a siderite matrix. Collected in 2002. (Author: crosstimber)

Gypsum Boldut Mine, Cavnic, Maramu

Gypsum Boldut Mine, Cavnic, Maramures, Romania 8.0 x 9.0 cm. Colorless, transparent crystals to 8.0 cm in length on light brown siderite. Collected in 1990. (Author: crosstimber)

Gypsum Boldut Mine, Cavnic, Maramu

Gypsum Cavnic Mine, Cavnic, Maramures, Romania 10.0 x 18.0 cm. Creamy to straw-colored, bladed, gypsum crystals covering an undulating, thin shell of quartz. Collected in 1990. (Author: crosstimber)

Gypsum Cavnic Mine, Cavnic, Maramu

Gypsum Chinkapook Lake, Swan Hill, Victoria, Australia Slender gypsum crystals tinted by iron oxides with a second generation growth of needle-like crystals on the sides of the prism. (Author: crosstimber)

Gypsum Chinkapook Lake, Swan Hill,

Gypsum Dämmelwald clay pit, Wiesloch, Baden-Württemberg, Germany 6.1 x 9.0 cm Two intersecting transparent gypsum crystals which exhibit green fluorescence under SW UV. (Author: crosstimber)

Gypsum Dämmelwald clay pit, Wieslo

Gypsum El Goléa, Ghardaïa Province, Algeria 7.0 x 9.5 cm An aggregate of reddish-brown lenticular gypsum crystals with sand inclusions. (Author: crosstimber)

Gypsum El Goléa, Ghardaïa Province

Gypsum Glass Mountains, Orienta, Major County, Oklahoma, USA 8.4 cm (Author: crosstimber)

Gypsum Glass Mountains, Orienta, M

Gypsum Great Salt Plains, Jet, Alfalfa County, Oklahoma, USA 6.2 cm (Author: crosstimber)

Gypsum Great Salt Plains, Jet, Alf

Gypsum Lake Gilles, Corunna Station, South Australia, Australia Left 2.3 x 3.3 cm, Right 2.1 x 4.3 A couple of colorless twinned gypsum crystals. (Author: crosstimber)

Gypsum Lake Gilles, Corunna Statio

Gypsum Lily Mine, Pisco Umay, Ica Department, Peru 3.8 x 5.0 cm. A group of transparent gypsum crystals to 3.5 cm with a small amount of chrysocolla on the back side. (Author: crosstimber)

Gypsum Lily Mine, Pisco Umay, Ica

Gypsum Marlow, Stephens County, Oklahoma, USA 16.2 cm. (Author: crosstimber)

Gypsum Marlow, Stephens County, Ok

Gypsum Myall Creek, Whyalla, Eyre Peninsula, South Australia, Australia 7.0 x 10.0 cm Sparkling colorless gypsum crystals completely covering an undulating matrix. (Author: crosstimber)

Gypsum Myall Creek, Whyalla, Eyre

Gypsum Naica, Mun. de Saucillo, Chihuahua, Mexico 5.5 x 9.5 cm. Slender blades of transparent gypsum to 6.0 cm on a triangular plate of smaller crystals colored greenish brown by iron oxides. (Author: crosstimber)

Gypsum Naica, Mun. de Saucillo, Ch

Gypsum Pernatty Lagoon, Stuart Shelf, South Australia, Australia 5.9 x 7.1 cm. A flat plate covered with mint green gypsum crystals. The green coloration is due to leaching of copper compounds from the nearby Mt. Gunson mine. (Author: crosstimber)

Gypsum Pernatty Lagoon, Stuart She

Gypsum Red River Floodway, Winnipeg, Manitoba, Canada 6.0 x 7.0 cm. A cluster of sharp colorless crystals with pale yellow tinged tips and a glassy luster. (Author: crosstimber)

Gypsum Red River Floodway, Winnipe

Gypsum Red River Floodway, Winnipeg, Manitoba, Canada 7.5 x 9.1 cm. Bladed gypsum crystals forming a sphere 7.0 cm in diameter with several twinned yellow crystals protruding from the sphere. (Author: crosstimber)

Gypsum Red River Floodway, Winnipe

Gypsum Salinas de Otuma, Paracas, Pisco, Pisco Province, Ica Department, Peru 7.5 x 8.6 cm. Transparent, orange twinned crystals to 2.5 cm scattered on a friable matrix of smaller gypsum crystals and halite. Mined in summer 2002. (Author: crosstimber)

Gypsum Salinas de Otuma, Paracas,

Gypsum Thomas Munzer Shaft, Sangerhausen, Saxony-Anhalt, Germany 7.0 x 10.3 cm. (Author: crosstimber)

Gypsum Thomas Munzer Shaft, Sanger

Gypsum Thomas Munzer Shaft, Sangerhausen, Saxony-Anhalt, Germany 7.0 x 10.3 cm A group of reddish-brown, twinned gypsum crystals to 3 cm. (Author: crosstimber)

Gypsum Thomas Munzer Shaft, Sanger

Gypsum Uljanovsk, Volga River, Russia 1.8 x 5.5 cm Colorless, sharp, prismatic gypsum crystal. (Author: crosstimber)

Gypsum Uljanovsk, Volga River, Rus

Gypsum Willow Creek, Nanton, Alberta, Canada 1.9 x 3.5 cm and 2.1 x 4.2 cm. Two loose doubly terminated transparent gypsum crystals. (Author: crosstimber)

Gypsum Willow Creek, Nanton, Alber

Gypsum Woolcunda Station, New South Wales, Australia 7.5 x 9.0 cm An intergrown group of reddish-brown lenticular gypsum crystals. (Author: crosstimber)

Gypsum Woolcunda Station, New Sout

Gypsum
Las Salinas, Otume, Paracas District, Pisco Province, Ica Department, Peru
6.3 x 9.4 cm (Author: crosstimber)

Gypsum
Las Salinas, Otume, Par

Gypsum
Machów Mine, Tarnobrzeg, Subcarpathian Voivodeship, Poland
4.0 x 6.5 cm (Author: crosstimber)

Gypsum
Machów Mine, Tarnobrze

Gypsum
Bou Bekker, Touissit District, Jerada Province, Oriental Region, Morocco
5.3 x 5.4 x 6.9 cm. (Author: crosstimber)

Gypsum
Bou Bekker, Touissit Di

Gypsum
Little Beaver Creek, Marlow, Stephens County, Oklahoma, USA
7.0 x 12.0 cm (Author: crosstimber)

Gypsum
Little Beaver Creek, Ma

Gypsum
Kerhonkson, Ulster County, New York, USA
1.5 x 5 cm (Author: crosstimber)

Gypsum
Kerhonkson, Ulster Coun

Gypsum
West Branch Meander Creek, Ellsworth, Mahoning County, Ohio, USA
1.2 x 3.0 cm (Author: crosstimber)

Gypsum
West Branch Meander Cre

Gypsum
Naica Mine, Naica, Municipio Saucillo, Chihuahua, Mexico
2.8 x 2.9 cm (Author: crosstimber)

Gypsum
Naica Mine, Naica, Muni

Gypsum
Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire)
1.9 x 2.6 cm (Author: crosstimber)

Gypsum
Mashamba West Mine, Kol

Gypsum
Irish Canyon, Moffat County, Colorado, USA
1.5 x 3.5 x 6.2 cm (Author: crosstimber)

Gypsum
Irish Canyon, Moffat Co

Gypsum
Assal Lake, Tadjourah Region, Republic of Djibouti
5.6 x 7.7 x 7.7 cm (Author: crosstimber)

Gypsum
Assal Lake, Tadjourah R

Gypsum
Mumbai District, Maharashtra, India
4.5 x 6.1 cm (Author: crosstimber)

Gypsum
Mumbai District, Mahara

Gyrolite Malad, Ward 38, Mumbai District, Maharashtra, India 7.6 x 8.3 cm. An olive-green hemisphere of gyrolite on a thin matrix of smaller gyrolite spheres associated with blocky colorless fluorapophyllite crystals. (Author: crosstimber)

Gyrolite Malad, Ward 38, Mumbai Di

Halite PCS Mine, Rocanville, Saskatchewan, Canada 3.5 x 8.5 cm. Colorless cubes of halite crystallized in a stairstep aggregate. (Author: crosstimber)

Halite PCS Mine, Rocanville, Saska

Halite Wintershall Potash Works, Heringen, Werra Valley, Hesse, Germany, 10.0 x 15.6 cm Colorless halite cubes to 3.1 cm on edge scattered over a pink halite matrix. Collected in 1966. (Author: crosstimber)

Halite Wintershall Potash Works, H

Halite
Kerr McGee Mine, Carlsbad Potash District, Eddy County, New Mexico, USA
2.0 x 2.0 cm (Author: crosstimber)

Halite
Kerr McGee Mine, Carlsb

Hanksite
Searles Lake, Mojave Desert, San Bernardino County, California, USA
3.8 x 5.5 cm (Author: crosstimber)

Hanksite
Searles Lake, Mojave

Hausmannite N’Chwaning Mine, Kuruman, N. Cape Prov., South Africa 2.6 x 3.7 cm An intergrown group of lustrous black hausmannite crystals to 2 cm on edge. (Author: crosstimber)

Hausmannite N’Chwaning Mine,

Helvite Navegadora Mine, Penha do Norte, Conselheiro Pena, Minas Gerais, Brazil 4.5 x 7.0 cm. Opaque yellow brown tetrahedral helvite crystals on a matrix of white albite. (Author: crosstimber)

Helvite Navegadora Mine, Penha do

Helvite-Genthelvite series Huanggang Mine #1, Chifeng Pref., Inner Mongolia AR, China 3.4 x 4.5 cm Root beer-colored crystals of helvite-genthelvite series attached to a sceptered quartz crystal dotted with small spheres of dark green clinochlore. (Author: crosstimber)

Helvite-Genthelvite series Huangga

Hematite Cavradi Gorge, Curnera Valley, Grischun, Switzerland 3.0 x 4.0 cm. Lustrous bladed hematite crystals to 1.6 cm. with small quartz crystals and rutile. Collected 6-04-97 by Swiss strahler Theodosi Venzin. (Author: crosstimber)

Hematite Cavradi Gorge, Curnera Va

Hematite Cavradi Gorge, Curnera Valley, Tujetsch, Grischun, Switzerland 3.0 x 4.2 cm A small group of lustrous, bladed, metallic black hematite crystals associated with small transparent quartz crystals and epitactic rutile crystals. Collected 6-04-97 by Swiss strahler Theodosi Venzin. (Author: crosstimber)

Hematite Cavradi Gorge, Curnera Va

Hematite Egremont, Cumbria, England 4.1 x 7.2 cm. A reniform aggregate of reddish-brown "kidney ore." (Author: crosstimber)

Hematite Egremont, Cumbria, Englan

Hematite Hachupa, Shigar Valley, Skardu District, Baltistan, Gilgit-Baltistan, Pakistan 2.3 x 2.9 cm. Hematite rose partially coated with chlorite. (Author: crosstimber)

Hematite Hachupa, Shigar Valley, S

Hematite Jinlong Hill, Longchuan Co., Heyaun Pref., Guangdong Prov., China 7.7 x 9.7 cm. Colorless to reddish-tinged quartz crystals to 3.5 cm associated with bladed black rosettes of hematite. (Author: crosstimber)

Hematite Jinlong Hill, Longchuan C

Hematite N’Chwaning II Mine, Kuruman, N. Cape Prov., South Africa 1.8 x 1.9 cm (Author: crosstimber)

Hematite N’Chwaning II Mine,

Hematite N’Chwaning II Mine, Kuruman, N. Cape Province, South Africa 3.9 x 4.0 cm (Author: crosstimber)

Hematite N’Chwaning II Mine,

Hematite N’Chwaning II Mine, Kuruman, N. Cape Province, South Africa 3.9 x 4.0 cm Lustrous metallic black hematite crystals with a small colorless calcite rhomb. (Author: crosstimber)

Hematite N’Chwaning II Mine,

Hematite Nador, Oriental Region, Morocco 1.5 x 2.8 cm. A spear-shaped crystal of hematite with lustrous faces. (Author: crosstimber)

Hematite Nador, Oriental Region, M

Hematite Ocna de Fier, Banat Mts., Caras-Severin Co., Romania 4.3 x 6.0 cm. Finely bladed lustrous black hematite rosettes associated with colorless quartz crystals. Collected in the 1970s. (Author: crosstimber)

Hematite Ocna de Fier, Banat Mts.,

Hematite Ouro Preto, Minas Gerais, Brazil 5.0 x 7.5 cm Lustrous black hexagonal crystals to 3 cm on edge arranged in a classic “eisenrose” shape. (Author: crosstimber)

Hematite Ouro Preto, Minas Gerais

Hematite Payún volcano, Altiplano de Payún Matru, Malargüe Department, Mendoza, Argentina 2.6 x 5.8 cm. Elongated octahedral hematite pseudomorphing magnetite and showing skeletal herringbone ribs. Collected from a fumarole in 2001. (Author: crosstimber)

Hematite Payún volcano, Altiplano

Hematite ps. after marcasite Farafra Oasis, White Desert, Matru Governorate, Egypt 4.1 x 4.6 cm Radiating chocolate brown spikes of hematite replacing marcasite crystals (Author: crosstimber)

Hematite ps. after marcasite Faraf

Hematite ps. after marcasite
White Desert, Farafra Oasis, Matruh Governorate, Egypt
1.9 x 2.2 cm (Author: crosstimber)

Hematite ps. after marcasite
W

Hematite ps. ilvaite Nikolaevskiy Mine, Dal’negorsk, Primorskiy Kray, Russia 3.5 x 6.5 cm Elongated prismatic crystals of ilvaite have been partially replaced by hematite and dusted with a sparkly druse of micro quartz. Collected in 2005. (Author: crosstimber)

Hematite ps. ilvaite Nikolaevskiy

Hematite var. specularite Forge Hill Mine, Hawley, Massachusetts, USA 5.5 x 7.0 cm. (Author: crosstimber)

Hematite var. spe
Forge Hill Mine,

Hematite var. turgite Shattuck Mine, Bisbee, Warren District, Cochise Co., Arizona 6.8 x 9.8 cm. (Author: crosstimber)

Hematite var. turgite Shattuck Min

Hematite
Ouro Preto, Minas Gerais, Brazil
1.2 cm (Author: crosstimber)

Hematite
Ouro Preto, Minas Ger

Hematite
Hachupa, Shigar District, Gilgit-Baltistan (Northern Areas), Pakistan
1.8 x 2.2 cm (Author: crosstimber)

Hematite
Hachupa, Shigar Distr

Hematite
Bouse, Plomosa District, Plomosa Mountains, La Paz County, Arizona, USA
2.0 x 2.5 cm (Author: crosstimber)

Hematite
Bouse, Plomosa Distri

Hematite
Fellital (Felli Valley), Reuss Valley, Uri, Switzerland
1.8 x 1.8 cm (Author: crosstimber)

Hematite
Fellital (Felli Valle

Hematite
Congonhas (Congonhas do Campo), Minas Gerais, Brazil
1.5 x 1.8 cm (Author: crosstimber)

Hematite
Congonhas (Congonhas

Hematite
Big Bertha Mine (Veta Grande Mine), Middle Camp-Oro Fino District, Dome Rock Mountains, La Paz County, Arizona, USA
1.5 x 1.9 cm (Author: crosstimber)

Hematite
Big Bertha Mine (Veta

Hemimorphite Skorpion Mine, Rosh Pinah, Karas Region, Namibia 3.8 x 5.9 cm Finely crystallized sheaves and fanlike forms of pale green hemimorphite pseudomorphing tarbuttite and overcoating a thin gray-blue layer of apatite. (Author: crosstimber)

Hemimorphite Skorpion Mine, Rosh P

Hemimorphite Wenshan Mine, Wenshan Co., Wenshan Pref., Yunnan Prov. China 8.0 x 11.5 cm (Author: crosstimber)

Hemimorphite Wenshan Mine, Wenshan

Hemimorphite and hydroxylapatite coating tarbuttite
Skorpion Mine, Rosh Pinah, Lüderitz District, ǁKaras Region, Namibia
3.6 x 5.5 cm (Author: crosstimber)

Hemimorphite and hydroxylapatite coating tarbuttite
Skorpion Mine, Rosh Pinah, Lüderitz District, ǁ

Hemimorphite
Summit Mine, Radersburg District, Broadwater County, Montana, USA
3.1 x 3.7 cm (Author: crosstimber)

Hemimorphite
Summit Mine, Rade

Hemimorphite
Summit Mine, Radersburg District, Broadwater County, Montana, USA
1.5 x 2.1 cm (Author: crosstimber)

Hemimorphite
Summit Mine, Rade

Heterogenite Star of Congo Mine, Lubumbashi, Katanga Prov., DR Congo 4.0 x 5.5 cm Dark blue-green botryoidal crusts of heterogenite on chrysocolla. Acquired from Gilbert Gauthier in 2001. (Author: crosstimber)

Heterogenite Star of Congo Mine, L

Heterosite Black Mt. Quarry, Rumford, Oxford Co., Maine, USA 2.0 and 2.3 cm (Author: crosstimber)

Heterosite Black Mt. Quarry, Rumfo

Heterosite
White Elephant Mine, Cicero Peak, Pringle, Custer District, Custer County, South Dakota, USA
4.8 x 6.6 cm (Author: crosstimber)

Heterosite
White Elephant Mine

Heterosite
Parker Mountain Mine, Parker Mountain, Strafford, Strafford County, New Hampshire, USA
4.3 x 4.5 cm (Author: crosstimber)

Heterosite
Parker Mountain Min

Heulandite Amudikha River, Evenkia, Krasnoyarsk Kray, Yakutia, Russia 5.5 x 6.0 cm Intergrown pinkish crystals to 2.0 cm with cream-colored hemispheres of thomsonite on dark basalt. (Author: crosstimber)

Heulandite Amudikha River, Evenkia

Heulandite Aurangabad District, Maharashtra, India 3.0 x 5.2 cm. Floater group of heulandite crystals colored pale green by inclusions of celadonite. (Author: crosstimber)

Heulandite Aurangabad District, Ma

Heulandite Aurangabad District, Maharashtra, India 5.7 x 8.3 cm. A group of heulandite crystals grading from colorless to pale peach on chalky-white mordenite. (Author: crosstimber)

Heulandite Aurangabad District, Ma

Heulandite Cape Blomidon, Kings Co., Nova Scotia, Canada 3.8 x 5.7 cm. Intergrown pearly-lustered pink heulandite crystals on basalt. (Author: crosstimber)

Heulandite Cape Blomidon, Kings Co

Heulandite Jalgaon District, Maharashtra, India 3.5 x 5.6 cm. Salmon-colored heulandite crystals partially covered with tiny white stilbites on a small shard of chalcedony and basalt. (Author: crosstimber)

Heulandite Jalgaon District, Mahar

Heulandite Jalgaon District, Maharashtra, India 3.9 x 5.7 cm. Reddish heulandite crystals and pale salmon colored stilbite on drusy colorless chalcedony. (Author: crosstimber)

Heulandite Jalgaon District, Mahar

Heulandite Teigarhorn, Berufjord, Iceland 6.5 x 7.0 cm. (Author: crosstimber)

Heulandite Teigarhorn, Berufjord,

Heulandite (Series)
Jalgaon District, Maharashtra, India
3.5 x 5.6 cm (Author: crosstimber)

Heulandite (Series)
Jalgaon Di

Heulandite with Celadonite inclusions
Aurangabad District, Maharashtra, India
1.2 x 2.1 cm (Author: crosstimber)

Heulandite with Celadonite inclusions
Aurangabad District, Maharashtr

Heulandite-Ca with Stilbite-Ca and Quartz (variety chalcedony)
Jalgaon District, Maharashtra, India
3.7 x 5.4 cm (Author: crosstimber)

Heulandite-Ca with Stilbite-Ca and Quartz (variety chalcedony)
Jal

Heulandite-Ca with Stilbite-Ca and Quartz (variety chalcedony)
Jalgaon District, Maharashtra, India
3.7 x 5.4 cm (Author: crosstimber)

Heulandite-Ca with Stilbite-Ca and Quartz (variety chalcedony)
Jal

Heulandite
Rat's Nest Claim, Challis, Bay Horse District, Custer County, Idaho, USA
7.0 x 9.0 cm (Author: crosstimber)

Heulandite
Rat's Nest Claim, C

Heulandite
Rat's Nest Claim, Challis, Bay Horse District, Custer County, Idaho, USA
1.8 x 2.4 cm (Author: crosstimber)

Heulandite
Rat's Nest Claim, C

Heulandite
Rat's Nest Claim, Challis, Bay Horse District, Custer County, Idaho, USA
7.0 x 7.8 cm (Author: crosstimber)

Heulandite
Rat's Nest Claim, C

Heulandite
Pato Branco, Paraná, Brazil
2.2 x 3.3 cm (Author: crosstimber)

Heulandite
Pato Branco, Paran�

Hopeite Kabwe Mine, Kabwe, Kabwe District, Central Province, Zambia FOV = 3.0 cm Closeup of above specimen. (Author: crosstimber)

Hopeite Kabwe Mine, Kabwe, Kabwe D

Hopeite Kabwe Mine, Kabwe, Kabwe District, Central Province, Zambia 7.5 x 12.0 cm Prismatic reddish-brown crystals of hopeite on a breccia fragment of limestone. (Author: crosstimber)

Hopeite Kabwe Mine, Kabwe, Kabwe D

Hornblende Bear Lake diggings, Gooderham, Monmouth Township, Haliburton Co. Ontario, Canada 10.5 x 13.0 cm. Large ugly hornblende crystals. (Author: crosstimber)

Hornblende Bear Lake diggings, Goo

Hornblende Bear Lake diggings, Gooderham, Monmouth Township, Haliburton Co. Ontario, Canada 10.5 x 13.0 cm. Large blocky crystals of hornblende collected 7-28-1998. (Author: crosstimber)

Hornblende Bear Lake diggings, Goo

Hubeite
Fengjiashan Mine, Edong, Daye, Huangshi Prefecture, Hubei Province, China
FOV ~ 2.5 cm (Author: crosstimber)

Hubeite
Fengjiashan Mine, Edon

Hübnerite Mundo Nuevo Mine, Huamachuco, La Libertad Dept., Peru 3.2 x 5.6 cm. Lustrous black bladed hubnerite crystals with transparent colorless quartz from the 2008 find. (Author: crosstimber)

Hübnerite Mundo Nuevo Mine, Huamac

Hubnerite - Gladstone, San Juan County, Colorado 6.9 cm (Author: crosstimber)

Hubnerite - Gladstone, San Juan Co

Hureaulite
Cigana Mine (Jocão Mine), Conselheiro Pena, Vale do Rio Doce, Minas Gerais, Brazil
1.7 x 2.1 cm (Author: crosstimber)

Hureaulite
Cigana Mine (Jocão

Hydroboracite Boron, Kramer District, Kern Co., California 3.8 x 4.7 cm. Stellate sprays of colorless hydroboracite crystals. (Author: crosstimber)

Hydroboracite Boron, Kramer Distri

Hydroxyapophyllite N’Chwaning II Mine, Kuruman, N. Cape Prov., South Africa 3.5 x 4.4 cm Pseudocubic hydroxyapophyllite crystals with lightly striated faces and truncated corners. (Author: crosstimber)

Hydroxyapophyllite N’Chwanin

Ilvaite Huanggang Complex, Keshiketeng Co., Chifeng Pref,, Inner Mongolia AR, China 3.0 x 4.5 cm Semi-lustrous prismatic ilvaite crystal oriented in parallel with a quartz crystal showing “artichoke” growth habit. (Author: crosstimber)

Ilvaite Huanggang Complex, Keshike

Ilvaite on quartz Nikolaevskiy Mine, Dal’negorsk, Primorskiy Kray, Russia 4.4 x 5.8 cm. Doubly terminated ilvaite crystals scattered over a quartz matrix. (Author: crosstimber)

Ilvaite on quartz Nikolaevskiy Min

Ilvaite
Laxey Mine, South Mountain District, Owyhee County, Idaho, USA
2.5 x 3 cm (Author: crosstimber)

Ilvaite
Laxey Mine, South Moun

Ilvaite
Huanggang Mines, Hexigten Banner (Kèshíkèténg Qí), Chifeng (Ulanhad), Inner Mongolia Autonomous Region, China
1.6 x 2.7 cm (Author: crosstimber)

Ilvaite
Huanggang Mines, Hexig

Ilvaite
Nikolaevski Mine, Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai, Far-Eastern Region, Russia
1.9 x 2.5 cm (Author: crosstimber)

Ilvaite
Nikolaevski Mine, Daln

Inesite Fengjiashan Mine, Daye Co., Huanshi Pref., Hubei Prov., China 1.7 x 2.3 cm. Acicular pink inesite crystals with scattered brown hubeite. (Author: crosstimber)

Inesite Fengjiashan Mine, Daye Co.

Inesite N’Chwaning II Mine, Kuruman, N. Cape Prov., South Africa 7.2 x 9.6 cm. Acicular salmon-colored inesite crystals to 3 mm arranged in radial clusters on a plate of vuggy brown matrix. (Author: crosstimber)

Inesite N’Chwaning II Mine,

Inesite N’Chwaning II Mine, Kuruman, N. Cape Prov., South Africa 7.0 x 9.5 cm Acicular salmon-colored inesite crystals on a vuggy brown matrix with a few colorless micro-crystals of apophyllite on the bottom of the specimen. (Author: crosstimber)

Inesite N’Chwaning II Mine,

Inesite
Fengjiashan Mine, Edong, Daye, Huangshi Prefecture, Hubei Province, China
5.5 x 7.5 cm (Author: crosstimber)

Inesite
Fengjiashan Mine, Edon

Inyoite Monte Azul deposit, Sijes, Salta Prov., Argentina 4.1 x 5.3 cm. Sharply-formed colorless pseudorhombic crystals to 2.2 cm on edge with minor meyerhofferite. (Author: crosstimber)

Inyoite Monte Azul deposit, Sijes,

Jamesonite ps. fizelyite Herja Mine, Baia Mare, Maramures, Romania 6.0 x 8.2 cm. Sprays of acicular fizelyite replaced by dark gray jamesonite on a plate of black sphalerite. This is a classic pseudomorph from Herja. Mined in 2001. (Author: crosstimber)

Jamesonite ps. fizelyite Herja Min

Joaquinite-(Ce)
California State Gem Mine (Benitoite Gem Mine), San Benito River headwaters area, Santa Rita Peak, New Idria District, San Benito County, California, USA
3.5 x 6.5 cm, FOV ~ 1.0 cm (Author: crosstimber)

Joaquinite-(Ce)
California Sta

Kidwellite
Three Oaks Gap workings, Three Oaks Gap, Polk County, Arkansas, USA
5.0 x 6.2 cm (Author: crosstimber)

Kidwellite
Three Oaks Gap work

Kidwellite
Three Oaks Gap workings, Three Oaks Gap, Polk County, Arkansas, USA
5.0 x 6.2 cm (Author: crosstimber)

Kidwellite
Three Oaks Gap work

Kinoite and apophyllite
Christmas Mine, Christmas, Banner District, Dripping Spring Mountains, Gila County, Arizona, USA
5.2 x 7.5 cm FOV ~ 2.5 cm (Author: crosstimber)

Kinoite and apophyllite
Christ

Kinoite
Christmas Mine, Christmas, Banner District, Dripping Spring Mountains, Gila County, Arizona, USA
5.2 x 7.5 cm (Author: crosstimber)

Kinoite
Christmas Mine, Christ

Ktenasite and Gypsum on Calcite
Mid-Continent Mine, Picher Field, Treece, Tri-State District, Cherokee County, Kansas, USA
4.5 x 5.5 cm (Author: crosstimber)

Ktenasite and Gypsum on Calcite
Mid-Continent Mine, Picher Field, Treece, Tri-State District, Cherokee County, Kansas, U

Kutnohorite N’Chwaning II Mine, Kuruman, N. Cape Province, South Africa 4.0 x 6.0 cm Pale pink mushroom-shaped aggregate of fibrous kutnohorite crystals. (Author: crosstimber)

Kutnohorite N’Chwaning II Mi

Kutnohorite
Wessels Mine, Hotazel, Kalahari manganese field (KMF), Northern Cape Province, South Africa
1.7 x 3.0 cm (Author: crosstimber)

Kutnohorite
Wessels Mine, Hota

Kyanite Barra de Salinas, Coronel Murta, Minas Gerais, Brazil 11.3 x 12.5 cm. Terminated kyanite crystals in massive iron-stained quartz. (Author: crosstimber)

Kyanite Barra de Salinas, Coronel

Label for barite pictured above. (Author: crosstimber)

Label for barite pictured above.

Labels for above heulandite. New minerals and new localities are wonderful, but I am always drawn to specimens that have a known history. (Author: crosstimber)

Labels for above heulandite. New m

Solno Mine, Inowrocław, Kujawsko-Pomorskie, Poland
5.0 x 6.3 cm (Author: crosstimber)

Large water-clear cubic crystal ex

Laumontite
Malad, Mumbai (Bombay), Mumbai District, Maharashtra, India
3.1 x 3.9 cm (Author: crosstimber)

Laumontite
Malad, Mumbai (Bomb

Laumontite
Malad, Mumbai (Bombay), Mumbai District, Maharashtra, India
3.1 x 3.9 cm (Author: crosstimber)

Laumontite
Malad, Mumbai (Bomb

Lazulite Cross Cut Creek, Dawson District, Yukon Territory, Canada 1.5 x 1.7 cm. Dark blue lustrous lazulite crystal group. (Author: crosstimber)

Lazulite Cross Cut Creek, Dawson D

Lazulite Cross Cut Creek, Dawson District, Yukon Territory, Canada 4.8 x 7.4 cm. Lustrous dark blue lazulite with gemmy brown siderite crystals and minor quartz. (Author: crosstimber)

Lazulite Cross Cut Creek, Dawson D

Legrandite Ojuela Mine, Mapimi, Durango, Mexico 5.0 x 9.5 cm. FOV=2.0 cm. Typical brown gossan matrix hosting single crystals and sprays of yellow transparent legrandite crystals to 0.5 cm. (Author: crosstimber)

Legrandite Ojuela Mine, Mapimi, Du

Leifite Mont Saint-Hilaire, Monteregie, Quebec, Canada 5.9 x 6.8 cm. Silky white sprays of leifite on gray albite with minor rhodochrosite and aegirine. (Author: crosstimber)

Leifite Mont Saint-Hilaire, Monter

Leonite ps. after picromerite Wintershall Potash Works, Heringen, Hesse, Germany 8.0 x 8.0 cm Opaque white leonite crystals on a pinkish halite matrix. The leonite crystals are pseudomorphs of picromerite, which is colorless when fresh, but quickly alters white leonite by dehydration. (Author: crosstimber)

Leonite ps. after picromerite Wint

Lepidolite Itinga, Jenipapo District, Minas Gerais, Brazil 6.5 x 7.5 cm. Yellow, partly gemmy rosettes to 2 mm in a mounded form. (Author: crosstimber)

Lepidolite Itinga, Jenipapo Distri

Lepidolite Mt. Mica, Paris, Oxford Co., Maine 4.0 x 5.3 cm Micaceous lilac-colored lepidolite embedded in white albite var. cleavelandite. (Author: crosstimber)

Lepidolite Mt. Mica, Paris, Oxford

lepidolite (Polylithionite-Trilithionite Series)
Mount Mica Quarry, Paris, Oxford County, Maine, USA
4.5 x 5.8 cm (Author: crosstimber)

lepidolite (Polylithionite-Trilithionite Series)
Mount Mica Quarry, Paris, Oxford

Lepidolite cast after tourmaline Barra de Salinas, Coronel Murta, Minas Gerais, Brazil 7.2 x 7.4 cm. Lilac-colored lepidolite crystals epimorphing elbaite crystals which have dissolved to leave tubular hollow casts. (Author: crosstimber)

Lepidolite cast after tourmaline B

Lepidolite on Quartz
Barra de Salinas, Coronel Murta, Vale do Jequitinhonha, Minas Gerais, Brazil
6.8 x 9.2 cm (Author: crosstimber)

Lepidolite on Quartz
Barra de

Lepidolite
Otjua Mine, Otjua Farm 37, Karibib District, Erongo Region, Namibia
5.0 x 8.5 cm (Author: crosstimber)

Lepidolite
Otjua Mine, Otjua F

Libethenite
Nchanga Mine, Chingola, Chingola District, Copperbelt Province, Zambia
4.3 x 5.5 cm (Author: crosstimber)

Libethenite
Nchanga Mine, Chin

Limonite ps. after pyrite Schwartz Farm, Fruitville, Lancaster Co., Pennsylvania, USA Left xl. 3.5 cm, right xl. 1.5 cm A somewhat distorted cube with prominent striations and a smaller but slightly more lustrous pyritohedron. (Author: crosstimber)

Limonite ps. after pyrite Schwartz

Linarite
Blanchard Mine (Portales-Blanchard Mine), Bingham, Hansonburg District, Socorro County, New Mexico, USA
6.1 x 8.6 cm (Author: crosstimber)

Linarite
Blanchard Mine (Porta

Löllingite Huanggang Mine #5, Keshiketeng Co., Chifeng Pref., Inner Mongolia AR, China 5.2 x 7.1 cm Polycrystalline growths of spear-shaped, lustrous, silvery löllingite crystals with quartz and minor dolomite. (Author: crosstimber)

Löllingite Huanggang Mine #5, Kes

Lorenzenite Selsurt Mt., Lovozero Massif, Kola Peninsula, Murmanskaya Oblast, Russia 4.7 x 7.9 cm Brown lorenzenite crystal in matrix with minor black aegirine. (Author: crosstimber)

Lorenzenite Selsurt Mt., Lovozero

Ludlamite
Huanuni Mine, Huanuni, Dalence Province, Oruro Department, Bolivia
1.4 x 1.5 cm (Author: crosstimber)

Ludlamite
Huanuni Mine, Huanun

Magnetite Cerro Huanaquino, Potosi Dept., Bolivia 4.5 x 6.9 cm. Octahedral magnetite crystals to 1.5 cm. (Author: crosstimber)

Magnetite Cerro Huanaquino, Potosi

Magnetite
Dashkesan deposit, Dashkesan, Dashkesan District, Republic of Azerbaijan
5.0 x 6.2 cm (Author: crosstimber)

Magnetite
Dashkesan deposit, D

Magnetite
Gardiner complex, Kangerlussuaq complex, Kangerlussuaq Firth, Tunu Province / East Greenland, Greenland
3.5 x 4.3 cm (Author: crosstimber)

Magnetite
Gardiner complex, Ka

Magnetite
Atakor volcanic massif, Ahaggar Mountain, Tamanghasset Province, Algeria
1.8 x 2.0 cm (Author: crosstimber)

Magnetite
Atakor volcanic mass

Magnetite
Carlton Quarry, Chester, Windsor County, Vermont, USA
Overall dimensions = 4.5 x 11.6 cm (Author: crosstimber)

Magnetite
Carlton Quarry, Ches

Malachite Aouli, Midelt, Khenifra Province, Meknes-Tafilalet region, Morocco 6.0 x 8.4 cm. Dark green malachite spheres on iron stained quartz associated with minor azurite, barite and a small colorless fluorite crystal. (Author: crosstimber)

Malachite Aouli, Midelt, Khenifra

Malachite Cole Shaft, 1200’ Level, Bisbee, Warren District, Cochise Co., Arizona 8.5 x 12.0 cm. (Author: crosstimber)

Malachite Cole Shaft, 1200’

Malachite Kiswishi Mine, Lubumbashi, Katanga Prov., DR Congo 4.5 x 7.0 cm Velvety green chatoyant crystal sheaves. (Author: crosstimber)

Malachite Kiswishi Mine, Lubumbash

Malachite Mashamba West Mine, Kolwezi, Katanga Prov., DR Congo 4.5 x 6.0 cm Clusters of dark green primary malachite. (Author: crosstimber)

Malachite Mashamba West Mine, Kolw

Malachite Mashamba West Mine, Kolwezi, Katanga Prov., DR Congo 5.6 x 6.8 cm Stalactitic forms coated with dark green malachite microcrystals. (Author: crosstimber)

Malachite Mashamba West Mine, Kolw

Malachite Milpillas Mine, Ciutaca, Mun. de Santa Cruz, Sonora, Mexico 2.2 x 2.9 cm Chatoyant malachite pseudomorphing azurite. (Author: crosstimber)

Malachite Milpillas Mine, Ciutaca,

Malachite Shilu Mine, Yangchun Co., Guangdong Prov., China 3.6 x 5.1 cm Dark green botryoidal malachite with a chatoyant luster. (Author: crosstimber)

Malachite Shilu Mine, Yangchun Co.

Malachite Sir Dominick Mine, Arkaroola Region, Flinders Ranges, South Australia, Australia 1.2 x 1.9 cm a velvety malachite pseudomorph after azurite. (Author: crosstimber)

Malachite Sir Dominick Mine, Arkar

Malachite after azurite
Nchanga Mine, Chingola, Chingola District, Copperbelt Province, Zambia
2.2 x 2.6 cm (Author: crosstimber)

Malachite after azurite
Nchang

Malachite ps. after barite Mashamba West Mine, Kolwezi, Katanga Prov., DR Congo 5.0 x 5.3 cm Velvety malachite replacing crystals of bladed barite. (Author: crosstimber)

Malachite ps. after barite Mashamb

Malachite ps. azurite Tsumeb Mine, Tsumeb, Namibia 4.6 x 4.5 cm. Sharply formed bright green malachite crystals with a feathery chatoyance pseudomorphing azurite. (Author: crosstimber)

Malachite ps. azurite Tsumeb Mine,

Malachite ps. barite
Shangulowé Mine, Kambove District, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire)
5.3 x 10.2 cm (Author: crosstimber)

Malachite ps. barite
Shangulow

Malachite with quartz
San Manuel Mine, San Manuel, San Manuel District, Pinal County, Arizona, USA
1.9 x 2.3 cm (Author: crosstimber)

Malachite with quartz
San Manu

Malachite
Kiswishi, Lubumbashi (Elizabethville), Katanga Copper Crescent, Haut-Katanga (Shaba), Democratic Republic of the Congo (Zaire)
1.7 x 2.3 cm (Author: crosstimber)

Malachite
Kiswishi, Lubumbashi

Malachite
Mashamba West Mine, Kolwezi District, Lualaba, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire)
6.5 x 12.5 cm (Author: crosstimber)

Malachite
Mashamba West Mine,

Malachite
Sacramento Pit, Sacramento Hill, Bisbee, Warren District, Mule Mountains, Cochise County, Arizona, USA
2.7 x 3.1 cm (Author: crosstimber)

Malachite
Sacramento Pit, Sacr

Malachite
Tantara Mine, Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of the Congo (Zaire)
2.9 cm (Author: crosstimber)

Malachite
Tantara Mine, Shinko

Malachite
Copper Queen Mine, Queen Hill, Bisbee, Warren District, Mule Mountains, Cochise County, Arizona, USA
2.0 x 2.7 cm (Author: crosstimber)

Malachite
Copper Queen Mine, Q

Malachite
Mission Mine, Mission complex, San Xavier, Pima mining district, Sierrita Mountains, Pima County, Arizona, USA
1.5 x 2,0 cm (Author: crosstimber)

Malachite
Mission Mine, Missio

Malachite
Czar Mine, Copper Queen Mine, Queen Hill, Bisbee, Warren District, Mule Mountains, Cochise County, Arizona, USA
1.8 x 2.5 cm (Author: crosstimber)

Malachite
Czar Mine, Copper Qu

Malachite
L'Etoile du Congo Mine, Lubumbashi (Elizabethville), Katanga Copper Crescent, Haut-Katanga (Shaba), Democratic Republic of the Congo (Zaire)
1.2 x 2.9 cm (Author: crosstimber)

Malachite
L'Etoile du Congo Mi

Malchite ps. after azurite New Cornelia Mine, Ajo, Pima Co., Arizona 3.7 x 5.1 cm Collected in 1985. (Author: crosstimber)

Malchite ps. after azurite New Cor

Manganite Caland Pit, Atikokan, Hutchinson Township, Rainy River District, Ontario, Canada 6.0 x 8.0 cm. Lustrous black bladed manganite crystals covering the top of massive manganite. (Author: crosstimber)

Manganite Caland Pit, Atikokan, Hu

Manganite Ilfeld, Nordhausen, Harz Mts., Thüringia, Germany 4.8 x 5.9 cm Lustrous, black, prismatic managanite crystals with typical longitudinal striations and minor calcite. (Author: crosstimber)

Manganite Ilfeld, Nordhausen, Harz

Manganite Ilfield, Harz Mts., Nordhausen, Thuringia, Germany 4.7 x 5.6 cm. (Author: crosstimber)

Manganite Ilfield, Harz Mts., Nord

Marcasite Komořany, Most, Ústí Region, Bohemia, Czech Republic 5.6 x 6.1 cm Arborescent group of pale, bronze-yellow, spear-shaped crystals. This location is a classic locale for marcasite where it occurs in plastic clays associated with coal deposits. (Author: crosstimber)

Marcasite Komořany, Most, Úst

Marcasite ps. pyrrhotite Baia Sprie, Maramures, Romania 4.2 x 6.2 cm. Sharp platy pyrrhotite crystals replaced by marcasite. Mined circa 1969. (Author: crosstimber)

Marcasite ps. pyrrhotite Baia Spri

Marcasite, calcite
Linwood Mine, Buffalo, Scott County, Iowa, USA
5.1 x 7.2 cm (Author: crosstimber)

Marcasite, calcite
Linwood Min

Marcasite, calcite
Linwood Mine, Buffalo, Scott County, Iowa, USA
5.1 x 7.2 cm (Author: crosstimber)

Marcasite, calcite
Linwood Min

Marcasite
Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region, Morocco
1.5 x 10.5 cm (Author: crosstimber)

Marcasite
Bou Nahas Mine, Oumj

Marcasite
Bou Nahas Mine, Oumjrane mining area, Alnif Commune, Tinghir Province, Drâa-Tafilalet Region, Morocco
1.5 x 10.5 cm (Author: crosstimber)

Marcasite
Bou Nahas Mine, Oumj

Marcasite
Temple, Bell County, Texas, USA
5.7 x 5.8 cm (Author: crosstimber)

Marcasite
Temple, Bell County,

Marcasite
Linwood Mine, Buffalo, Scott County, Iowa, USA
3.0 x 4.1 cm (Author: crosstimber)

Marcasite
Linwood Mine, Buffal

Margarite Melvin Mine, Chester, Hampden Co,, Massachusetts, USA 7.5 x 10.2 cm Pink margarite with minor green clinochlore and magnetite from another classic Massachusetts locality. The magnetite at this location was mixed with corundum and was mined as emery for abrasives. Self collected. (Author: crosstimber)

Margarite Melvin Mine, Chester, Ha

Margarite and clinochlore in emery Melvin Mine, Chester, Massachusetts, USA 8.3 x 10.2 cm. (Author: crosstimber)

Margarite and cli
Melvin Mine, Ches

Mercury
Socrates Mine, Castle Rock Springs area, West Mayacmas District, Sonoma County, California, USA
4.6 x 6.9 cm (Author: crosstimber)

Mercury
Socrates Mine, Castle

Mesolite Kannad, Aurangabad District, Maharashtra, India 7.6 x 8.2 cm. Light tan sphere of mesolite with with small pinkish-tan heulandite crystals on brown basalt. Collected in 2009. (Author: crosstimber)

Mesolite Kannad, Aurangabad Distri

Mesolite Lonavala, Pune District, Maharashtra, India 4.5 x 11.7 cm. Divergent sprays of colorless mesolite on a thin rind of basalt and pale pink stilbite. (Author: crosstimber)

Mesolite Lonavala, Pune District,

Mesolite
Kannad, Aurangabad District, Maharashtra, India
11.4 cm (Author: crosstimber)

Mesolite
Kannad, Aurangabad Di

Mesolite
Lonavale (Lonavala), Pune District (Poonah District), Maharashtra, India
4.5 x 11.7 cm (Author: crosstimber)

Mesolite
Lonavale (Lonavala),

Mesolite
Cap d'Or, Bay of Fundy, Parrsboro, Cumberland County, Nova Scotia, Canada
6.8 x 7.7 cm (Author: crosstimber)

Mesolite
Cap d'Or, Bay of Fund

Meta autunite São Pedro Claim, Malacacheta, Minas Gerais, Brazil 1.6 x 3.0 cm. Books of lemon yellow, bladed crystals to forming an intergrown cluster. Obtained from Carlos Barbosa in 1993. (Author: crosstimber)

Meta autunite São Pedro Claim, Mal

Meta-autunite
Daybreak Mine, Mount Kit Carson, Spokane County, Washington, USA
3.5 x 5.1 cm (Author: crosstimber)

Meta-autunite
Daybreak Mine, M

Meta-Autunite
Malacacheta, Malacacheta Municipality, Vale do Mucuri, Minas Gerais, Brazil
1.6 x 3.0 cm (Author: crosstimber)

Meta-Autunite
Malacacheta, Mal

Meta-torbernite Assuncao Mine, Aldea Nova, Viseu Dist., Portugal 6.4 x 9.5 cm, FOV ~ 4.0 cm. Emerald green crystals to 3.0 mm on quartz. (Author: crosstimber)

Meta-torbernite Assuncao Mine, Ald

Metatorbernite Musonoi Extension, Kolwezi, Katanga Prov., DR Congo 5.0 x 9.0 cm Emerald-green bladed crystals of metatorbernite covering a gray matrix. (Author: crosstimber)

Metatorbernite Musonoi Extension,

Metatorbernite
Margabal Mine, Entraygues-sur-Truyère, Lot et Truyère, Rodez, Aveyron, Occitanie, France
1.8 x 1.8 cm (Author: crosstimber)

Metatorbernite
Margabal Mine,

Meyerhofferite Mt. Blanco Mine, Death Valley, Furnace Creek District, Inyo Co., California 5.1 x 6.0 cm. Colorless lathlike crystals of a somewhat rare borate from the type locality for the species. (Author: crosstimber)

Meyerhofferite Mt. Blanco Mine, De

Microcline Papachacra Mts., Belen Dept., Catamarca Prov., Argentina 3.0 x 3.3 cm. A single cream-colored twinned microcline crystal sitting atop smaller microcline crystals. (Author: crosstimber)

Microcline Papachacra Mts., Belen

Microcline Raikot, Chilas Diamer District, Gilgit-Baltistan, Pakistan 3.6 x 8.0 cm. Porcelain white Baveno-twinned microcline crystal with numerous smaller crystals along one prism face. (Author: crosstimber)

Microcline Raikot, Chilas Diamer D

Microcline (variety amazonite)
Smoky Hawk claim, Crystal Peak area, Teller County, Colorado, USA
2.0 x 2.7 cm (Author: crosstimber)

Microcline (variety amazonite)
Smoky Hawk claim, Crystal Peak area, Teller County, Colorado, US

Microcline (variety amazonite)
Crystal Peak area, Teller County, Colorado, USA
1.6 x 2.2 cm (Author: crosstimber)

Microcline (variety amazonite)
Crystal Peak area, Teller County, Colorado, US

Microcline and Albite
Moat Mountain, Hale's Location, Carroll County, New Hampshire, USA
4.2 x 4.4 cm (Author: crosstimber)

Microcline and Albite
Moat Mou

Microcline var. amazonite Tree Root Pocket, Two Point Claim, Teller Co., Colorado 4.2 x 5.4 cm. (Author: crosstimber)

Microcline var. amazonite Tree Roo

Microcline with Albite (variety cleavelandite)
Government Pit, Albany, Carroll County, New Hampshire, USA
2.5 x 3.8 x 7.1 cm (Author: crosstimber)

Microcline with Albite (variety cleavelandite)
Government Pit, Albany, Carroll County, N

Milarite on adularia Valenciana Mine, Guanajuato, Mexico 4.5 x 5.7 x 8.8 Lustrous rhombic adularia crystals with small prismatic yellow milarite and and sparkly quartz crystals. (Author: crosstimber)

Milarite on adularia Valenciana Mi

Milky quartz - Ohio Mine, Ouray, Colorado 7.1 cm (Author: crosstimber)

Milky quartz - Ohio Mine, Ouray, C

Millerite
U.S. Highway 27 roadcut, Halls Gap, Lincoln County, Kentucky, USA
4.5 x 6.0 cm (Author: crosstimber)

Millerite
U.S. Highway 27 road

Millerite
U.S. Highway 27 roadcut, Halls Gap, Lincoln County, Kentucky, USA
4.5 x 6.0 cm (Author: crosstimber)

Millerite
U.S. Highway 27 road

Mimetite Inglaterra Mine, Francisco Portillo, Mun. de Aquiles Serdán, Chihuahua, Mexico 4.5 x 7.5 cm, Lustrous, orange-brown mimetites that remind me of cauliflower. There are also some small white calcite rhombs on the base of the specimen. (Author: crosstimber)

Mimetite Inglaterra Mine, Francisc

Mimetite Minerales Shaft, West Camp, Mun. de Aquiles Serdan, Chihuahua, Mexico 6.4 x 7.9 cm (Author: crosstimber)

Mimetite Minerales Shaft, West Cam

Mimetite Minerales Shaft, West Camp, Mun. de Aquiles Serdán, Chihuahua, Mexico 6.0 x 7.4 cm. A limonitic matrix encrusted with mimetite crystals to 5 mm. The crystals have yellow bases, with an intermediate brown zone, and have mustard yellow pyramidal terminations. (Author: crosstimber)

Mimetite Minerales Shaft, West Cam

Mimetite Ojuela Mine, Mapimi, Durango, Mexico 8.5 x 10.5 cm. Groups of yellow-green crystals to 3.0 mm coating a gossan matrix with minor calcite and wulfenite. (Author: crosstimber)

Mimetite Ojuela Mine, Mapimi, Dura

Mimetite Pintouling Mine, Sanjiang, Liannan Co., Guangdong Prov., China 2.1 x 2.2 cm. Hexagonal prisms of yellow to orange mimetite with pinacoid terminations. These first reached the U.S. market in Jan. 2003. Unfortunately, specimens were collected for only a few months before the supply was exhausted. (Author: crosstimber)

Mimetite Pintouling Mine, Sanjiang

Mimetite Tsumeb Mine, Tsumeb, Namibia 5.5 x 8.7 cm. Spiky yellow mimetite crystals averaging 4-6 mm in length with bubbly white calcite, minor malachite and reddish iron oxide included calcite. (Author: crosstimber)

Mimetite Tsumeb Mine, Tsumeb, Nami

Mimetite (closeup of above specimen) Ojuela Mine, Mapimi, Durango, Mexico FOV = 6.0 cm. (Author: crosstimber)

Mimetite (closeup of above specime

Mimetite on calcite San Antonio Mine, Santa Eulalia, Mun. de Aquiles Serdán, Chihuahua, Mexico 5.8 x 6.9 cm. Yellowish brown spheres of mimetite to 2 mm scattered over colorless to to white calcite crystals on a limonite matrix. (Author: crosstimber)

Mimetite on calcite San Antonio Mi

Mimetite-Vanadinite series
Gowd Mine, Anarak District, Nain, Isfahan Province, Iran
6.8 x 9.1 cm (Author: crosstimber)

Mimetite-Vanadinite series
Gow

Mimetite-Vanadinite series
Gowd Mine, Anarak District, Nain, Isfahan Province, Iran
6.8 x 9.1 cm, FOV~4.0 cm (Author: crosstimber)

Mimetite-Vanadinite series
Gow

Mimetite
Ojuela Mine, Mapimí, Municipio Mapimí, Durango, Mexico
Field of view is approximately 3 cm. wide (Author: crosstimber)

Mimetite
Ojuela Mine, Mapimí,

Mimetite
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
3.8 x 5.3 cm (Author: crosstimber)

Mimetite
Tsumeb Mine, Tsumeb,

Mimetite
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
1.5 x 2.0 cm (Author: crosstimber)

Mimetite
Tsumeb Mine, Tsumeb,

Mimetite
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
1.5 x 2.3 cm (Author: crosstimber)

Mimetite
Tsumeb Mine, Tsumeb,

Mimetite
Congreso-León Mine, León Group, San Pedro Corralitos, Municipio Casas Grandes, Chihuahua, Mexico
2.0 x 2.3 cm (Author: crosstimber)

Mimetite
Congreso-León Mine,

Mimetite
Ojuela Mine, Mapimí, Municipio Mapimí, Durango, Mexico
1.7 x 2.4 cm (Author: crosstimber)

Mimetite
Ojuela Mine, Mapimí,

Minerva #1 Mine. 4.5 x 5.5 cm (Author: crosstimber)

Minerva #1 Mine. 4.5 x 5.5 cm