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Rock Crystal

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MEX101460

Rock Crystal

ex Ralf Wartha, Namibia

Description Tabs

Description
Locality: 
Tubussis Farm 22, Dâures, Erongo Region, Namibia
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.1 × 4.7 × 4.3 cm
Description

A lattice quartz, an epitactic intergrowth of quartz on feldspar. The specimen isn't acid, and carry crust of manganomelane and hyalite. The manganomelane is a mixture from three manganoxides (information from mr. wartha).

Mineral Data
What's on the rock

Rock Crystal

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Formula: 
Hardness: 
0.0