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Aragonite : CaCO3, Pyrite : FeS2, Calcite : CaCO3 | |
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Brühne quarry, Kallenhardt, Warstein, Sauerland, North Rhine-Westphalia, Germany Aragonite and Pyrite on top of Calcite, field of view 6mm Mindat.org Photo of the Day - 3rd Sep 2006 |
| © tho-thie@web.de | Photo ID: 58941 View Count: 624 |
Quartz (Var: Eisenkiesel) : SiO2 | |
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Brühne quarry, Kallenhardt, Warstein, Sauerland, North Rhine-Westphalia, Germany Field of view 15mm |
| © tho-thie@web.de | Photo ID: 50473 View Count: 634 |
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