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Hydrowoodwardite

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Hydrowoodwardite

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Description
Locality: 
St Johannes Mine, Wolkenstein, Marienberg, Erzgebirge, Saxony, Germany
Class: 
Massive/Crystalline
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.4 × 2.7 × 1.8 cm
Description

Sky blue crystal agreggates of the very rare mineral hydrowoodwardite from one of the few localities known worldwide.

Mineral Data
What's on the rock

Hydrowoodwardite

Formula: 
(Cu1-xAlx)(OH)2[SO4]x/2·nH2O
Strunz: 
7.DD.35
Crystal System: 
Trigonal
Hardness: 
0.0
Streak: 
pale blue
Type Locality: 
St Briccius Mine, Königswalde, Annaberg District, Erzgebirge, Saxony, Germany

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