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Bariopharmacosiderite Beudantite & Segnitite

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CLB41419

Bariopharmacosiderite Beudantite & Segnitite

Rare Mineral

Description Tabs

Description
Locality: 
Clara Mine, Oberwolfach, Freiburg Region, Baden-Württemberg, Germany
Size Range: 
Miniature (4.5-7 cm)
Size: 
2.2 × 5.2 × 4 cm
Description

Perfect bariopharmacosiderite crystals on quartz-matrix with beudantite-segnitite. I cannot guarantee for the last because this sample wasn't x-rayed. Nonetheless I trust the finder and his knowledge of micro-crystals from the Clara mine.

Clara is the worldwide leading mine in the number of different minerals found there.

Mineral Data
What's on the rock

Bariopharmacosiderite

Formula: 
Ba0.5Fe3+4(AsO4)3(OH)4·5H2O
Strunz: 
8.DK.10
Crystal System: 
Tetragonal
Hardness: 
2.5
Type Locality: 
Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany

Beudantite

Formula: 
PbFe3(AsO4)(SO4)(OH)6
Strunz: 
8.BL.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.5
Type Locality: 
Louise Mine, Bürdenbach, Altenkirchen, Wied Iron Spar District, Westerwald, Rhineland-Palatinate, Germany

Segnitite

Formula: 
PbFe3+3(AsO4)2(OH,H2O)6
Strunz: 
8.BL.10
Crystal System: 
Trigonal
Hardness: 
4.0
Type Locality: 
Kintore opencut, Broken Hill, Yancowinna Co., New South Wales, Australia

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