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Aegirine & Orthoclase On Quartz

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CLB521950

Aegirine & Orthoclase On Quartz

Classic Locality

Description Tabs

Description
Locality: 
Mount Malosa, Zomba, Southern Region, Malawi
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
8 × 6.8 × 4 cm
Largest Crystal: 
4.80cm
Description

Amongst others one very good, well-terminated, glossy black aegirine crystal of 4.8 cm on quartz with some blocky, white orthoclase crystals.

Mineral Data
What's on the rock

Aegirine

Formula: 
NaFe3+Si2O6
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.25
Crystal System: 
Monoclinic
Hardness: 
6.0
Type Locality: 
Rundemyr, Øvre Eiker, Buskerud, Norway

Orthoclase

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Hardness: 
6.0
Streak: 
White

Quartz

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

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