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Hemimorphite With Dolomite

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PCZ632187

Hemimorphite With Dolomite

Description Tabs

Description
Locality: 
Ojuela Mine, Mapimi, Durango, Mexico
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 4.5 × 2.5 cm
Description

A very nice specimen with sharp crystals of hemimorphite and dolomite contrasting well with the matrix. Hemimorphite is common from the locality but when in association with dolomite much less so.  Displays well both sides. Classic locality.

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

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White
Peter Crozier Minerals