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Conichalcite & Calcite

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ESM922805

Conichalcite & Calcite

Description Tabs

Description
Locality: 
Ojuela Mine, Mapimi, Durango, Mexico
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3 × 2 cm
Description

Lustrous botryoidal green conichalcite crystals hosting clear calcite crystals on a limonite matrix

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