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Natroalunite

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CHP912384

Natroalunite

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Description
Locality: 
Cerro do Algaré Mine, Almodôvar, Beja District, Portugal
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2.3 × 1.5 cm
Description

specimen with some very good crystalline aggregates of yellowish natroalunite on matrix.

c. 4336

Mineral Data
What's on the rock

Natroalunite

Formula: 
NaAl3(SO4)2(OH)6
Strunz: 
7.BC.10
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Red Mountain District, Ouray Co., Colorado, USA
Not Sold

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