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Messelite & Jahnsite-(CaMnMn)

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CHP971258

Messelite & Jahnsite-(CaMnMn)

Classic Locality

Description Tabs

Description
Locality: 
Fonte da Cal Mine, Bendada Mines, Bendada, Sabugal, Guarda District, Portugal
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.3 × 1.1 × 0.9 cm
Description

specimen with some beautiful white complex lamellar crystals of messelòite with associate very good yellow crystals of Jahnsite-(CaMnMn) on matrix.

Ex personal collection Pedro Alves

c. 6102

Mineral Data
What's on the rock

Messelite

Formula: 
Ca2(Fe2+,Mn2+)(PO4)2·2H2O
Strunz: 
8.CG.05
Hardness: 
3.5
Streak: 
White
Type Locality: 
Messel Mine, Messel, Darmstadt, Hesse, Germany

Jahnsite-(CaMnMn)

Formula: 
{Ca}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2·8H2O
Strunz: 
8.DH.15
Hardness: 
4.0
Streak: 
White
Type Locality: 
Cubos-Mesquitela-Mangualde area, Mangualde, Viseu District, Portugal

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