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Alluaudite

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SKY802512

Alluaudite

Rare Mineral

Description Tabs

Description
Locality: 
Rabenstein, Zwiesel, Lower Bavaria, Bavaria, Germany
Class: 
Crystals on Matrix
Size Range: 
Micromount (under 1cm)
Size: 
0.6 × 0.5 × 0.2 cm
Description

Black crystal aggregates of allaudite (labeled as huehnerkobelite) from  a German locality.

Ex Vandenbroucke Museum collection from Waregem, Belgium.

Mineral Data
What's on the rock

Alluaudite

Formula: 
(Na,Ca)Mn2+(Fe3+,Mn2+,Fe2+,Mg)2(PO4)3
Strunz: 
8.AC.10
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0
Type Locality: 
Varuträsk, Skellefteå, Västerbotten, Sweden

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