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Cassiterite & Brazilianite

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SER567599

Cassiterite & Brazilianite

Description Tabs

Description
Locality: 
Linópolis, Divino das Laranjeiras, Doce Valley, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.9 × 2 × 1.1 cm
Description

A black twinned cassiterite crystal on brazilianite

Mineral Data
What's on the rock

Cassiterite

Formula: 
SnO2
Strunz: 
4.DB.05
Crystal System: 
Tetragonal
Hardness: 
6.0 - 7.0

Brazilianite

Formula: 
NaAl3(PO4)2(OH)4
Strunz: 
8.BK.05
Crystal System: 
Monoclinic
Hardness: 
5.5
Streak: 
White
Type Locality: 
Córrego Frio mine, Linópolis, Divino das Laranjeiras, Doce valley, Minas Gerais, Brazil
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