| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Mexico > Pyrite with Chalcocite coating |
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| DESCRIPTION: | No. 68464 |
| Mineral: | Pyrite with Chalcocite coating |
| Locality: | Milpillas Mine, Cuitaca, Sonora, Mexico |
| Description: | Two lustrous gray-metallic pyrite crystals in contrasting white clay-rich matrix. The gray color is caused by a thin coating of chalcocite. The pyrite crystals are cubo-octahedral form, one exhibiting a post-crystallization fracture. Collected in 2015. Analysis of coating performed from Ben Grguric at South Australian Museum |
| Overall Size: | 5x3x3.5 cm |
| Crystals: | 18 mm |
| Archived: | For reference only |
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