| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Pennsylvania > Chalcopyrite |
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| DESCRIPTION: | No. 42959 |
| Mineral: | Chalcopyrite |
| Locality: | French Creek Iron Mines, St. Peters, Chester County, Pennsylvania |
| Description: | Large hoppered-growth iridescent metallic chalcopyrite crystals on black magnetite-rich matrix. This is a good specimen from a classic locality dating to the 1800s, now closed. See: The French Creek Mine in Mineralogical Record v.25 #2. |
| Overall Size: | 5x3x3 cm |
| Crystals: | 2-15 mm |
| Archived: | For reference only |
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