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Quartz, Dolomite, Pyrite, Baryte


Quartz : SiO2, Dolomite : CaMg(CO3)2, Pyrite : FeS2, Baryte : BaSO4

Photo Copyright © 2008 Michael C. Roarke  - Creative Commons Non-Commercial No Derivatives Licence - Some Rights Reserved
Locality: Guanajuato, Mun. de Guanajuato, Guanajuato, Mexico
55 x 45 mm specimen. White quartz, glittering pyrite microcrystals on dolomite, beige baryte roses. RFC M1871.

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