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Muscovite (Var: Illite)

Muscovite (Var: Illite) : K0.65Al2.0[Al0.65Si3.35O10](OH)2
minID: 0UX-KVK

Photo Copyright © DSW 2011  - This image is copyrighted. Unauthorized reproduction prohibited.
Dimensions: 10.2 cm x 7 cm x 0.7 cm

Interesting pseudomorph: a thin plate of matrix is scattered with numerous hoppered cubic halite crystals to 9 mm on edge, these replaced by clay. Per previous labels and other entries, this has been ID'ed as illite.

10.2 x 7.0 x 0.7 cm

Don Windeler collection, acquired in 2007 from Dan Weinrich. Previously in the Scott Williams collection, with label noting it was collected in 1975.

This photo has been shown 436 times

Photo added: 9th Jan 2011

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