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Bahianite

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SKY204150

Bahianite

Rare Mineral
Type Locality

Description Tabs

Description
Locality: 
Pico das Almas River, Paramirim das Crioulas, Érico Cardoso, Bahia, Brazil
Size Range: 
Micromount (under 1cm)
Size: 
0.7 × 0.5 × 0.2 cm
Description

Bahianite is a very rare mineral found worldwide in only two close localities in Bahia. It has the chemical composition Al5Sb3O14(OH)2 and it has the particularity of being the second (or maybe third) hardest mineral known after the diamond, with a hardness of 9 in the Mohs scale.

Mineral Data
What's on the rock

Bahianite

Formula: 
Al5Sb3O14(OH)2
Strunz: 
4.DC.05
Crystal System: 
Monoclinic
Hardness: 
9.0
Type Locality: 
Pico das Almas river, Paramirim das Crioulas, Érico Cardoso (former Água Quente), Bahia, Brazil

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