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Excalibur Mineral Corp. 1885 Seminole Trail - Suite 202 Charlottesville, VA 22901-1160 USA

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's Image Gallery With 4041 Images

Coutinhoite Image

Images:

Coutinhoite: ThxBa1-2x(H2O)y(UO2)2Si5O13·H2O

Comments: New mineral, IMA 2003-025, from this pegmatite. This is a co-type specimen. Flaky crystals of choutinhoite to less than 0.25mm in gelatin capsule.
Location: Lavra do Urucum, Serra do Urucum, Galileia, Minas Gerais, Brazil. Scale: Crystal size 0.25mm.
© Tom Loomis / Dakota Matrix

Coutinhoite Image

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Coutinhoite: ThxBa1-2x(H2O)y(UO2)2Si5O13·H2O

Comments: Irregular aggregate of yellow coutinhoite. (AmMin, v 89, p 721).
Location: Urucum mine, Galiléia, Minas Gerais, Brazil. Scale: See Image.
© American Mineralogist

Covellite Image

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Covellite: CuS

Comments: Covellite crystal group.
Location: Butte, Montana, USA. Scale: 8 x 4 cm.
© Fabre Minerals

Covellite Image

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Covellite: CuS
Nukundamite: (Cu,Fe)4S4

Comments: Metallic brownish rim of nukundamite with dark purplish-blue covellite on fine-grained pyrite.
Location: Ronneburg U deposit, Gera district, Thuringia, Germany. Scale: Picture size 7 mm.
© Thomas Witzke / Abraxas-Verlag

Cowlesite Image

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Cowlesite: CaAl2Si3O10·5-6(H2O)

Comments: Milky bluish translucent botryoidal cowlesite in vug.
Location: Goble, Columbia County, Oregon, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Coyoteite Image

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Coyoteite: NaFe3S5·2(H2O)

Comments: Black and white image of a polished section showing coyoteite crystals showing chevron pattern developed by opposing cleavage sets. Continuous parallel lines are polishing scratches. (AmMin 68:252).
Location: Coyote Peak mafic alkalic diatreme near Orick, Humboldt County, California. USA. Scale: Image size 0.26 mm.
© American Mineralogist

Crandallite Image

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Crandallite: CaAl3(PO4)2(OH)5·(H2O)
Wardite: NaAl3(PO4)2(OH)4·2(H2O)

Comments: Sliced and polished slab of yellow to white mixture of wardite and crandallite.
Location: Clay Canyon, Fairfield, Utah Co., Utah, USA. Scale: 11x6x.6 cm.
© John Betts - Fine Minerals

Crandallite Image

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Crandallite: CaAl3(PO4)2(OH)5·(H2O)
Phosphofibrite: KCuFe+++15(PO4)12(OH)12·12(H2O)

Comments: Olive-green colored fibrous phosphofibrite aggregates with white crandallite.
Location: Silver Coin Mine, Humboldt County, Nevada, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Creaseyite Image

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Creaseyite: Pb2Cu2(Fe+++,Al)2Si5O17·6(H2O)

Comments: Sparse light green micro crystalline creaseyite on crystalline quartz.
Location: Navajoa, Sonora, Mexico. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Creaseyite Image

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Creaseyite: Pb2Cu2(Fe+++,Al)2Si5O17·6(H2O)

Comments: Green acicular sprays of creaseyite to 0.5mm on matrix.
Location: Rawhide mine, Mohave County, Arizona, USA. Scale: Picture size 5 mm.
© Tom Loomis / Dakota Matrix

Crednerite Image

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Crednerite: CuMnO2
Mendipite: Pb3Cl2O2

Comments: Sooty, deep-black, granular to platy crednerite with mendipite.
Location: Mendip Hills, Somerset, England. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Crednerite Image

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Crednerite: CuMnO2
Chloroxiphite: Pb3CuCl2(OH)2O2
Mendipite: Pb3Cl2O2

Comments: Green, opaque granular chloroxiphite with mendipite and black crednerite.
Location: Higher Pitts Farm, Priddy, Mendip Hills, Somerset, England. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Crednerite Image

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Crednerite: CuMnO2
Mendipite: Pb3Cl2O2
Chloroxiphite: Pb3CuCl2(OH)2O2

Comments: Radiating compact with clear to white crystalline mendipite with black crednerite and green chloroxiphite.
Location: Mendip Hills, Somerset, England. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Creedite Image

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Creedite: Ca3Al2(SO4)(F,OH)10·2(H2O)

Comments: Colorless, bladed creedite crystals.
Location: Mina Navidad, Durango, Mexico. Scale: Crystal size 1.4 cm.
© John Veevaert

Creedite Image

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Creedite: Ca3Al2(SO4)(F,OH)10·2(H2O)
Fluorite: CaF2

Comments: Well-developed, prismatic, reddish creedite crystals on green fluorite.
Location: Mina Navidad, Rodeo, Durango, Mexico. Scale: 9 x 5 x 5.3 cm.
© Fabre Minerals

Creedite Image

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Creedite: Ca3Al2(SO4)(F,OH)10·2(H2O)
Smithsonite: ZnCO3

Comments: Purple transparent crystals of creedite to 6 mm on matrix of creamy botryoidal crystalline smithsonite.
Location: Level 8 San Antonio mine, Santa Eulalia, Chihuahua, Mexico. Scale: 7 x 3.5 x 2 cm.
© Dan Weinrich

Crichtonite Image

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Crichtonite: (Sr,La,Ce,Y)(Ti,Fe+++,Mn)21O38

Comments: Black crichtonite crystal in quartz.
Location: Kriegalptal, Binntal, Wallis (Valais), Switzerland. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

Criddleite Image

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Criddleite: TlAg2Au3Sb10S10
Aurostibite: AuSb2

Comments: B&W polished section image of criddleite (grey) surrounding and penetrating aurostibite (white) within quartz gangue. (MinMag, v52:691).
Location: Hemlo gold deposit, Hemlo, Ontario, Canada. Scale: See Image.
© Mineralogical Magazine

Cristobalite Image

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Cristobalite: SiO2

Comments: White crystals of cristobalite frozen in obsidian glass.
Location: Cerro San Cristobal, Pachuca, Hidalgo, Mexico. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Crocoite Image

Images:

Crocoite: PbCrO4

Comments: Prismatic crystals of red-orange crocoite.
Location: Adelaide Mine, Dundas, Tasmania. Scale: Specimen size 5 cm.
© Dave Barthelmy

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