AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from (Illinois) > Pyrite

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Pyrite from Chicago Aggregates Tunnel, (Chicago, Cook County), (Illinois)

 
Pyrite from Chicago Aggregates Tunnel, (Chicago, Cook County), (Illinois)

Pyrite from Chicago Aggregates Tunnel, (Chicago, Cook County), (Illinois)

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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