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Plattnerite Hemimorphite & Calcite

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KCM99460

Plattnerite Hemimorphite & Calcite

Description Tabs

Description
Locality: 
Ojuela Mine, Mapimi, Durango, Mexico
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 8.5 × 3.5 cm
Description

This specimen is richly vested with plattnerite. It occurs as free-standing crystals and clusters, as well as inclusions within hemiporphite and calcite crystals.

Really choice under magnification!

Mineral Data
What's on the rock

Plattnerite

Formula: 
PbO2
Strunz: 
4.DB.05
Crystal System: 
Tetragonal
Hardness: 
5.5
Type Locality: 
Leadhills, South Lanarkshire, Strathclyde (Lanarkshire), Scotland, UK

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

Calcite

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