AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Pennsylvania > Graphite and Stilpnomelane in Marble (Calcite)

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Graphite and Stilpnomelane in Marble (Calcite) from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

 
Graphite and Stilpnomelane in Marble (Calcite) from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

Graphite and Stilpnomelane in Marble (Calcite) from French Creek Iron Mines, St. Peters, Chester County, Pennsylvania

DESCRIPTION:No. 33307
Mineral:Graphite and Stilpnomelane in Marble (Calcite)
Locality:French Creek Iron Mines, St. Peters, Chester County, Pennsylvania
Description:Crystals of graphite in matrix of white marble with pockets lined with bronze-colored stilpnomelane(?) and calcite. The graphite crystals are thin, hexagonal form with brilliant surface luster. See article: The French Creek Mine in Min. Rec. v.25 #2. Ex. Stuart F. Wise collection #65
Overall Size:7x7x2.5 cm
Crystals:.1-5 mm
Status: Sold - Posted here for reference only
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