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Tangdanite

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JYJ842788

Tangdanite

SEM-EDS & Raman confirmed no 984

Description Tabs

Description
Locality: 
Clara Mine, Oberwolfach, Freiburg Region, Baden-Württemberg, Germany
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 4.8 × 2.7 cm
Description

New mineral for the famous Clara mine. Beautiful bluish-green tangdanite associated with baryte, tetrahedrite and quartz. 

The specimen has been SEM-EDS & Raman confirmed. Analysis no 984. Analytical data in the analytical section. 

The sulfate transition at around ~990cm^(-1) can be seen. The Raman data matches well will with tangdanite (no rruff reference available). 

Mineral Data
What's on the rock

Tangdanite

Formula: 
Ca2Cu9(AsO4)4(SO4)0.5(OH)9·9H2O
Hardness: 
0.0
Type Locality: 
Tangdan Mine, Dongchuan Cu ore field, Dongchuan District, Kunming Prefecture, Yunnan Province, China
Analysis
Analysis Report - only: Tangdanite
Analysis Report - only: Tangdanite
Analysis Report - only: Tangdanite