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Cobaltoan Calcite & Shattuckite

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PDM621605

Cobaltoan Calcite & Shattuckite

Description Tabs

Description
Locality: 
Tantara Mine, Katanga, Congo (Democratic Republic) (former Zaire)
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 5.2 × 2.7 cm
Description

This is a very rare cobaltoan calcite with shattuckite and chrysocolla from the Tantara mine. These specimens where extracted in the 1940’s and 1950’s and are really scarce in collections. This blue-pink combinations were only surpassed by green-pink combinations combinations of dioptase and cobaltoan calcite.

Ex. Achiel Moors specimen, a Belgian colonist in the D.R.Congo from 1957 to 1972.

Mineral Data
What's on the rock

Cobaltoan Calcite

Variety Of: 

Calcite

Formula: 
CaCO3
Strunz: 
5.AB.05
Hardness: 
3.0
Formula: 
(Ca,Co)CO3
Hardness: 
0.0

Shattuckite

Formula: 
Cu5(Si2O6)2(OH)2
Strunz: 
9.DB.40
Crystal System: 
Orthorhombic
Hardness: 
3.5
Type Locality: 
Shattuck Mine (Shattuck-Denn Mine; Shattuck-Arizona Mine; Denn Mine), Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA

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