| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Pennsylvania > Chalcopyrite on Magnetite |
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| DESCRIPTION: | No. 44524 |
| Mineral: | Chalcopyrite on Magnetite |
| Locality: | French Creek Iron Mines, St. Peters, Chester County, Pennsylvania |
| Description: | Sharp tetrahedral chalcopyrite crystals exhibiting hoppered growth, on dark magnetite-rich matrix. The chalcopyrite crystals have bronze-colored patina with purple iridescence in areas. Ex. Henry D. Miller (1838-1919 or 1920) collection, bequeathed to the Wadsworth Atheneum in 1909; ex. Loomis-Chaffee School |
| Overall Size: | 10x8x5 cm |
| Crystals: | 3-15 mm |
| Archived: | For reference only |
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