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Cookeite

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CAM88580

Cookeite

Description Tabs

Description
Locality: 
Stand On Your Head Mine, Bland, Saline County, Arkansas, United States of America
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.3 × 4.5 × 4 cm
Largest Crystal: 
0.50cm
Description

A very fine example of cookeite, a uncommon complex silicate, from Arkansas with lots of green cookeite balls up to 5 mm on quartz.

Mineral Data
What's on the rock

Cookeite

Formula: 
(Al2Li)Al2(AlSi3O10)(OH)8
Strunz: 
9.EC.55
Hardness: 
2.5 - 3.5
Streak: 
White
Type Locality: 
Mount Mica Quarry (Mount Mica Mine), Paris, Oxford Co., Maine, USA
Cartils Minerals

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