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Bermanite

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JYJ572106

Bermanite

Description Tabs

Description
Locality: 
El Criollo Mine, Cerro Blanco, Tanti, Punilla Department, Córdoba, Argentina
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1.5 × 0.3 cm
Description

Red bermanite crystals up to 150µm forming clusters on triplite matrix. Ofter associated with phosphosiderite, eosphorite and pachnolite. The El Criollo mine is that type locality for benyacarite.

Mineral Data
What's on the rock

Bermanite

Formula: 
Mn2+Mn3+2(PO4)2(OH)2·4H2O
Strunz: 
8.DC.20
Crystal System: 
Monoclinic
Hardness: 
3.5
Type Locality: 
7U7 Ranch (7-U-7 Ranch), Bagdad Mine area, Hillside, Eureka District, Yavapai Co., Arizona, USA