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Vermiculite var. Jefferisite from Brinton's Quarry, Chester County, Pennsylvania

 
Vermiculite var. Jefferisite from Brinton's Quarry, Chester County, Pennsylvania

DESCRIPTION:No. 18242
Mineral:Vermiculite var. Jefferisite
Locality:Brinton's Quarry, Chester County, Pennsylvania
Description:Irregular crystal of jefferisite (mica altered to vermiculite) from the old Brinton's Quarry. See article: Joseph H. Brinton and Brinton's Quarry in Matrix, Jan./Feb. 1993.
Overall Size:55x40x2 mm
Crystals:55 mm
Status: Sold - Posted here for reference only
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