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Strashimirite Cornwallite & Quartz

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SER650304

Strashimirite Cornwallite & Quartz

Description Tabs

Description
Locality: 
Clara Mine, Oberwolfach, Freiburg Region, Baden-Württemberg, Germany
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.1 × 1.6 × 1.5 cm
Description

Several balls of light blue strashimirite crystals with tiny green cornwallite on quartz

Mineral Data
What's on the rock

Strashimirite

Formula: 
Cu8(AsO4)4(OH)4·5H2O
Strunz: 
8.DC.12
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.0
Type Locality: 
Zapachitsa Cu deposit (Zapacica), Bov, Svoge Obshtina, Sofiya Oblast (Sofia Oblast), Bulgaria

Cornwallite

Formula: 
Cu5(AsO4)2(OH)4
Strunz: 
8.BD.05
Crystal System: 
Monoclinic
Hardness: 
4.5
Type Locality: 
Wheal Gorland, St Day United Mines (Poldice Mines), Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White