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Claraite & Theisite

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RSL596615

Claraite & Theisite

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Description Tabs

Description
Locality: 
Les Ferreres Mine, Rocabruna, Camprodon, Ripollès, Girona, Catalonia, Spain
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.5 × 7.5 × 5.5 cm
Description

Good size specimen partially covered by crusts of brilliant lamellar claraite crystals, of an intense turquoise blue. On a matrix of dolomite and sulphides (tetrahedrite-tennantite), with black asbolane. It is also  accompanied by some globular aggregates of theisite. Analysis results will be sent to the buyer.
Claraite is a rare copper and zinc carbonate which may contain sulfur and/or arsenic. Theisite is a rare copper and zinc arsenate-antimonate that has been described for the first time in this mine in the Catalan Pyrenees. These mineral species are the second citation in Spain.
We have published a book called "Rocabruna i el seu entorn. La mina de les Ferreres" where you could enjoy all species collected and determined until the date of publication (2014).

Collected: 
2013
Mineral Data
What's on the rock

Claraite

Formula: 
(Cu,Zn)15(CO3)4(AsO4)2(SO4)(OH)14 · 7H2O
Strunz: 
5.DA.30
Crystal System: 
Triclinic
Hardness: 
0.0
Type Locality: 
Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany

Theisite

Formula: 
Cu5Zn5(AsO4,SbO4)2(OH)14
Strunz: 
8.BE.75
Hardness: 
0.0
Streak: 
Off-white
Type Locality: 
Tuckerville prospects, Hinsdale Co., Colorado, USA
Analysis
Analysis Report - only: Claraite & Theisite