AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Pennsylvania > Vermiculite var. Jefferisite

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Online Mineral Museum Archive of Mineral Photographs and Mineral Descriptions from John Betts - Fine Minerals.com and Allminerals.com

   

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

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

DESCRIPTION:No. 28356
Mineral:Vermiculite var. Jefferisite
Locality:Brinton's Quarry, Westtown, 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. Ex. A. Lincoln Sherk II, MD. (1896-1970)
Overall Size:4x3x.5 cm
Crystals:4 cm
Archived: For reference only

 

 

 

 

 

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