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Orthoclase Smoky Quartz & Mica

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PCZ124836

Orthoclase Smoky Quartz & Mica

Description Tabs

Description
Locality: 
Mourne Mountains, County Down, Northern Ireland, United Kingdom
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 5 × 4 cm
Largest Crystal: 
1.20cm
Description

The highlight of this specimen is two well terminated smokey quartz crystals, (1.2cm), which are quite large for the locality. These rest on a 0.8cm orthoclase crystal.

Mineral Data
What's on the rock

Orthoclase

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

Smoky Quartz

Variety Of: 

Quartz

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

Mica

Group Parent: 
Mica Group
Peter Crozier Minerals