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Jahnsite-(CaMnMn)

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CSL568074

Jahnsite-(CaMnMn)

Rare Mineral

Description Tabs

Description
Locality: 
Silbergrube, Waidhaus, Upper Palatinate, Bavaria, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.1 × 3.1 × 2.2 cm
Description

Very nice yellow microcrystals of rare jahnsite-(CaMnMn) in association with brown tiny balls and needles of frondelite, on typical pegmatite matrix. Good coverage of both minerals. Recently analyzed old material from the early nineties.

Mineral Data
What's on the rock

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
Loranth Minerals

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