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Augite & Quartz

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MGR674688

Augite & Quartz

Description Tabs

Description
Locality: 
Söllnkar, Krimmler Ache Valley, Hohe Tauern, Salzburg, Austria
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.7 × 2.7 × 1.6 cm
Description

A group of sharp terminated highly lustrous augite crystals attractively set on well shaped quarz. Most time augite only developed clusters or less aesthetic groups on matrix. An exposed group on quarz with this aesthetic assemble is really outstanding. No significant demages to report.

Mineral Data
What's on the rock

Augite

Formula: 
(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Strunz: 
9.DA.15
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White