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Calcite With Hemimorphite

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SCH164976

Calcite With Hemimorphite

Description Tabs

Description
Locality: 
Potosí Mine, Francisco Portillo, Santa Eulalia, Aquiles Serdán Municipality, Chihuahua, Mexico
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.6 × 2.5 × 2.4 cm
Description

Rhombic white dolomite crystals (replacing calcite?)  with scattered bladed crystals of transparent hemimorphite. Very clean, no damage.

 

Mineral Data
What's on the rock

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

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
schani

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