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Conichalcite & Calcite

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SMM788470

Conichalcite & Calcite

Description Tabs

Description
Locality: 
Ojuela Mine, Mapimi, Durango, Mexico
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 1.5 × 0.6 cm
Description

The sample shows two crystallized faces, one with a carpet of shiny green conichalcite crystals on which are beautiful colorless calcite crystals, in the other, small spherical groups of green conichalcite crystals are nestled in the cavities of the matrix. Cute.

Boxed with Label
Mineral Data
What's on the rock

Conichalcite

Formula: 
CaCu(AsO4)(OH)
Strunz: 
8.BH.35
Crystal System: 
Orthorhombic
Hardness: 
4.5
Type Locality: 
Hinojosa del Duque, Córdoba, Andalusia, Spain

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

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