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Quartz : SiO2, Anhydrite : CaSO4

Copyright © Dott. Geol. Marco Barsanti - geoman1@tin.it
 
 
minID: 0EL-EV2

Quartz : SiO2, Anhydrite : CaSO4

Copyright © Dott. Geol. Marco Barsanti - geoman1@tin.it  - This image is copyrighted. Unauthorized reproduction prohibited.

15 mm black quartz crystal (color is probably caused by bitumen inclusion) in anhydrite matrix

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