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Bermanite & Phosphosiderite & Jahnsite

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CHP872920

Bermanite & Phosphosiderite & Jahnsite

Classic Locality

Description Tabs

Description
Locality: 
Bendada Mines, Bendada, Sabugal, Guarda District, Portugal
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 2 × 1.9 cm
Description

specimen with some very good orange-red aggregates of crystals of bermanite with associate violet crystalline phosphosiderite and yellowish crystals of jahnsite.

c. 2979

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

Phosphosiderite

Formula: 
FePO4·2H2O
Strunz: 
8.CD.05
Hardness: 
3.5 - 4.0
Type Locality: 
Kalterborn Mine, Eiserfeld, Siegerland, North Rhine-Westphalia, Germany

Jahnsite

Synonym Of: 

Jahnsite-(CaMnFe)

Formula: 
{Ca}{Mn2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2·8H2O
Strunz: 
8.DH.15
Hardness: 
4.0

Jahnsite-(CaMnMg)

Formula: 
{Ca}{Mn2+}{(Mg,Fe2+)2}{Fe3+2}(PO4)4(OH)2·8H2O
Strunz: 
8.DH.15
Hardness: 
4.0

Jahnsite-(CaMnMn)

Formula: 
{Ca}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2·8H2O
Strunz: 
8.DH.15
Hardness: 
4.0

Jahnsite-(MnMnMn)

Formula: 
{Mn2+}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2·8H2O
Strunz: 
8.DH.15
Hardness: 
4.0

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