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Gypsum & Paratacamite

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GPM731840

Gypsum & Paratacamite

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Description Tabs

Description
Locality: 
Lubin Mine, Gmina Lubin, Lubin County, Lower Silesian Voivodeship, Poland
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.8 × 5.5 × 1.3 cm
Description

Aesthetic cluster of lustrous and sharply formed gypsum crystals from Poland.  The green colour of crystals is caused by rare paraatacamite crystals visible on the photo (XRD analysis) - tab Analysis.

g_362

Mineral Data
What's on the rock

Gypsum

Formula: 
CaSO4·2H2O
Strunz: 
7.CD.40
Hardness: 
2.0
Streak: 
White.

Paratacamite

Formula: 
Cu3(Cu,Zn)(OH)6Cl2
Strunz: 
3.DA.10c
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
Green
Type Locality: 
Generosa Mine, Caracoles, Sierra Gorda District, Antofagasta Province, Antofagasta Region, Chile
Analysis
Analysis Report - only: Gypsum & Paratacamite

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