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Illite Psm Halite

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SHS201932

Illite Psm Halite

Description Tabs

Description
Locality: 
Auburn, Androscoggin County, Maine, United States of America
Size Range: 
Thumbnail (1-3cm)
Size: 
2.3 × 1.8 × 0.7 cm
Description

 Nice pseudomorphose illite after halite cubes

Mineral Data
What's on the rock

Illite

Variety Of: 

Muscovite

Formula: 
KAl2(AlSi3O10)(OH)2
Strunz: 
9.EC.15
Hardness: 
2.5
Formula: 
K0.65Al2.0[Al0.65Si3.35O10](OH)2
Hardness: 
1.0 - 2.0
Streak: 
White
Type Locality: 
Maquoketa Shale, Gilead, Calhoun Co., Illinois, USA

Halite

Formula: 
NaCl
Strunz: 
3.AA.20
Crystal System: 
Isometric
Hardness: 
2.5
Streak: 
White