AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from (Illinois) > Pyrite |
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DESCRIPTION: | No. 50304 |
Mineral: | Pyrite |
Locality: | Chicago Aggregates Tunnel, (Chicago, Cook County), (Illinois) |
Description: | Unusual specimen of metallic cubic pyrite crystals with concave cubic faces in gray matrix. The accompanying handwritten label says: hopper pyrite, Chicago aggregates tunnel, BD and Banino 1985. No other locality info was provided. Ex. Peter B. Nalle (1923-2010) collection |
Overall Size: | 22x15x14 mm |
Crystals: | 1-9 mm |
Archived: | For reference only |
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