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Hemimorphite & Aurichalcite

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MIC898008

Hemimorphite & Aurichalcite

Description Tabs

Description
Locality: 
Dos Adrianas Mine, Tierra Amarilla, Copiapó Province, Atacama Region, Chile
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.6 × 2.5 × 2 cm
Description

The zinc-minerals Hemimorphite as colourless lath-like crystals and Aurichalcite in a green tuft consisting of lath-like rectangular crystals have grown on Quartz crystals and on brown pseudomorphoses 
in rhombohedric shape after a mineral of the Beudantite group.

Mineral Data
What's on the rock

Hemimorphite

Formula: 
Zn4Si2O7(OH)2·H2O
Strunz: 
9.BD.10
Hardness: 
4.5 - 5.0
Streak: 
White
Type Locality: 
Băiţa Mining District (Baita Bihor; Rézbánya), Nucet, Bihor Co., Romania

Aurichalcite

Formula: 
(Zn,Cu)5(CO3)2(OH)6
Strunz: 
5.BA.15
Crystal System: 
Monoclinic - Prismatic
Hardness: 
1.0 - 2.0
Type Locality: 
Loktevskoye Mine (Loktevskii Mine), Upper Loktevka River, Rudnyi Altai, Altaiskii Krai, Western-Siberian Region, Russia
Not Sold

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