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Braccoite

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CSL188983

Braccoite

IMA2013-093
New Mineral type

Description Tabs

Description
Locality: 
Valletta Mine, Aisone, Cuneo Province, Piedmont, Italy
Size Range: 
Thumbnail (1-3cm)
Size: 
1.2 × 1.1 × 0.3 cm
Description

Braccoite is a new Na-Mn-As bearing arsenate mineral species, forms orange crytalline masses in quartzite matrix.

Mineral Data
What's on the rock

Braccoite

Formula: 
NaMn2+5[Si5As5+O17(OH)](OH)
Hardness: 
0.0
Type Locality: 
Valletta Mine (La Valletta Mine), Vallone della Valletta, Canosio, Maira Valley, Cuneo Province, Piedmont, Italy

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