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Bieberite & Erythrite

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JYJ557607

Bieberite & Erythrite

Description Tabs

Description
Locality: 
Bieber, Biebergemünd, Main-Kinzig, Darmstadt, Hesse, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2 × 1.4 cm
Description

Red bieberite and erythrite from the type locality. 

Mineral Data
What's on the rock

Bieberite

Formula: 
CoSO4·7H2O
Strunz: 
7.CB.35
Crystal System: 
Monoclinic
Hardness: 
2.0
Type Locality: 
"Im Lochborn" Copper mine, Bieber, Gelnhausen, Spessart, Hesse, Germany...

Erythrite

Formula: 
Co3(AsO4)2·8H2O
Strunz: 
8.CE.40
Hardness: 
1.5 - 2.5
Type Locality: 
Daniel Mine (St. Daniel Mine), Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany