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Cookeite & Quartz

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CFL967900

Cookeite & Quartz

Fluorescent

Description Tabs

Description
Locality: 
Saline County, Arkansas, United States of America
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
13.5 × 8 × 7 cm
Description

Very nice and rich specimen of green cookeite crystals associated with colorless quartz.  Probably from Stand-on-your-Head No. 1 Mine, Bland.  Purchased in 1991.

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

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

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