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Atacamite & Aragonite

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TPX1004566

Atacamite & Aragonite

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Description Tabs

Description
Locality: 
Arroyo de Cea, Rio Marbella, Baena, Córdoba, Andalusia, Spain
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
10.6 × 8.6 × 5.8 cm
Weight: 
387.00gr
Description

Very interesting group of atacamite on aragonite crystals on matrix, the smallest crystals are totally pseudomorphed by atacamite and  some of the largest crystals only have a surface coating. The green mineral was analyzed at the time in Barcelona and Seville and in both cases it has given malachite, but subsequent analysis, of which a copy is attached, of pieces from the same site but from another area have given a high level of Atacamite, at first glance the tone changes a little so I think that depending on the area, Malachite or Atacamite prevails. .These specimens come from a small Triassic zone found among the labor fields. As far as I know, only two dozen specimens have been found.

Mineral Data
What's on the rock

Atacamite

Formula: 
Cu2(OH)3Cl
Strunz: 
3.DA.10a
Crystal System: 
Orthorhombic
Hardness: 
3.0 - 3.5
Type Locality: 
Atacama Region, Chile

Aragonite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.15
Crystal System: 
Hexagonal
Hardness: 
3.5 - 4.0
Type Locality: 
Gallo river, Molina de Aragón, Guadalajara, Castile-La Mancha, Spain
Analysis
Analysis Report - only: Atacamite & Aragonite
Analysis Report - only: Atacamite & Aragonite
Analysis Report - only: Atacamite & Aragonite

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