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Ankerite, CaFe++(CO3)2, Eagle mine, Gilman, Eagle Co., Colorado, USA. Cream-white Ankerite rhombs from 5mm to 2cm

Ankerite, CaFe++(CO3)2, Eagle mine, Gilman, Eagle Co., Colorado, USA. Cream-white Ankerite rhombs from 5mm to 2cm

Dolomite, 12.5 cm translucent gray rhombohedral crystals to 1.3 cm. Spain. 1990s

Dolomite, 12.5 cm translucent gray rhombohedral crystals to 1.3 cm. Spain. 1990s

Rhodochrosite, Quartz, Tetrahedrite and Pyrite - Casapalca Mine, Lima Dept., Peru

Rhodochrosite, Quartz, Tetrahedrite and Pyrite - Casapalca Mine, Lima Dept., Peru

dolomite durango mexico

dolomite durango mexico

Rodocrosita

Rodocrosita

Ankerite - Empire Mine, Gilman, Eagle Co., Colorado  9.6 cm (Author: crosstimber)

Ankerite - Empire Mine, Gilman, Eagle Co., Colorado 9.6 cm (Author: crosstimber)

Dolomite, CaMg(CO3)2, Spain

Dolomite, CaMg(CO3)2, Spain

Ankerite, Ca(Fe,Mg)(CO3)2 , stacked crystals on Quartz,  Spruce Ridge, Washington, USA

Ankerite, Ca(Fe,Mg)(CO3)2 , stacked crystals on Quartz, Spruce Ridge, Washington, USA

Dolomite, CaMg(CO3)2, on Magnesite, Brumado District, Serra das eguas, Bahia, Brazil. Transparent twinned dolomite crystals to 25 mm across with silky surface luster and slightly gray color, on matrix of colorless rhombohedral magnesite crystals. Size: 6.5x5x3.5 cm

Dolomite, CaMg(CO3)2, on Magnesite, Brumado District, Serra das eguas, Bahia, Brazil. Transparent twinned dolomite crystals to 25 mm across with silky surface luster and slightly gray color, on matrix of colorless rhombohedral magnesite crystals. Size: 6.5x5x3.5 cm

Dolomite var. Zinc-dolomite, Dolomite. Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia Copyright © Rob Lavinsky & irocks.com

Dolomite var. Zinc-dolomite, Dolomite. Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia Copyright © Rob Lavinsky & irocks.com

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