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Chabazite-Ca: (Ca0.5,Na,K)4[Al4Si8O24]·12H2O

Comments: Pinkish orange colored chabazite-Ca displaying a blocky, near-cubic form of triclinic crystals.
Location: Imilchil, Anti-Atlas Morocco. Scale: 4.2 x 3.7 x 1.6 cm.
© Fabre Minerals

Chabazite-Ca: (Ca0.5,Na,K)4[Al4Si8O24]·12H2O

Comments: Pinkish orange colored chabazite-Ca displaying a blocky, near-cubic form of triclinic crystals.
Location: Imilchil, Anti-Atlas Morocco. Scale: 4.2 x 3.7 x 1.6 cm.
© Fabre Minerals

Chalcopyrite: CuFeS2  
Quartz: SiO2

Comments: Well-formed crystals of chalcopyrite and quartz.
Location: Boldut mine, 61 level (350 meters deep), Cavnic, Maramures, Rumania. Scale: 5.5 x 3.5 cm.
© Fabre Minerals

Chalcopyrite: CuFeS2  
Quartz: SiO2

Comments: Well-formed crystals of chalcopyrite and quartz.
Location: Boldut mine, 61 level (350 meters deep), Cavnic, Maramures, Rumania. Scale: 5.5 x 3.5 cm.
© Fabre Minerals

Chalcostibite: CuSbS2

Comments: Dark gray crystals of chalcostibite on white quartz matrix.
Location: Boldut mine, Cavnic Maramures, Rumania. Scale: 7 x 7 x 3.5 cm.
© Fabre Minerals

Chalcostibite: CuSbS2

Comments: Dark gray crystals of chalcostibite on white quartz matrix.
Location: Boldut mine, Cavnic Maramures, Rumania. Scale: 7 x 7 x 3.5 cm.
© Fabre Minerals

Chrysocolla: (Cu,Al)2H2Si2O5(OH)4·n(H2O)

Comments: Botryoidal chrysocolla lining a vug.
Location: Inca del Oro, Copiapó, Chile. Scale: 7.5 x 6 cm.
© Fabre Minerals

Chrysocolla: (Cu,Al)2H2Si2O5(OH)4·n(H2O)

Comments: Botryoidal chrysocolla lining a vug.
Location: Inca del Oro, Copiapó, Chile. Scale: 7.5 x 6 cm.
© Fabre Minerals

Clinozoisite: Ca2Al3(SiO4)3(OH) = Ca2AlAl2(SiO4)(Si2O7)O(OH)

Comments: Brown, prismatic crystal of clinozoisite.
Location: Alchuri, Shigar Skardu district, Pakistan. Scale: Crystal size 7x2.3x1.2 cm.
© Fabre Minerals

Clinozoisite: Ca2Al3(SiO4)3(OH) = Ca2AlAl2(SiO4)(Si2O7)O(OH)

Comments: Brown, prismatic crystal of clinozoisite.
Location: Alchuri, Shigar Skardu district, Pakistan. Scale: Crystal size 7x2.3x1.2 cm.
© Fabre Minerals

Colemanite: Ca2B6O11·5(H2O)

Comments: Large crystals of brown colemanite with second generation of absolutely clear and gemmy (colorless) colemanite. Intensely fluorescent in long and short UV..
Location: Mustafakemalpascha Mine, West-Anatolia Turkey. Scale: Crystal size: 1.3 x 1 cm.
© Fabre Minerals

Colemanite: Ca2B6O11·5(H2O)

Comments: Large crystals of brown colemanite with second generation of absolutely clear and gemmy (colorless) colemanite. Intensely fluorescent in long and short UV..
Location: Mustafakemalpascha Mine, West-Anatolia Turkey. Scale: Crystal size: 1.3 x 1 cm.
© Fabre Minerals

Columbite-(Fe): Fe++Nb2O6  
Microcline: KAlSi3O8

Comments: Blocky, dark brown ferrocolumbite on pale greenish blue amazonite (microcline).
Location: Crystal Park, El Paso Co., Colorado, USA. Scale: 2.5 x 1.5 cm.
© Fabre Minerals

Columbite-(Fe): Fe++Nb2O6  
Microcline: KAlSi3O8

Comments: Blocky, dark brown ferrocolumbite on pale greenish blue amazonite (microcline).
Location: Crystal Park, El Paso Co., Colorado, USA. Scale: 2.5 x 1.5 cm.
© Fabre Minerals

Cornetite: Cu3(PO4)(OH)3

Comments: Radial groups of intense blue cornetite crystals in green malachite.
Location: Mine de l'Etoile, Shaba, Lubumbashi Zaire. Scale: Picture size 5 cm.
© Fabre Minerals

Cornetite: Cu3(PO4)(OH)3

Comments: Radial groups of intense blue cornetite crystals in green malachite.
Location: Mine de l'Etoile, Shaba, Lubumbashi Zaire. Scale: Picture size 5 cm.
© Fabre Minerals

Corundum: Al2O3

Comments: corundum (variety Sapphire).
Location: Miass, Urals, Russia. Scale: 10 x 8 cm.
© Fabre Minerals

Corundum: Al2O3

Comments: corundum (variety Sapphire).
Location: Miass, Urals, Russia. Scale: 10 x 8 cm.
© Fabre Minerals

Covellite: CuS

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

Covellite: CuS

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