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Anorthoclase

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SHS57234

Anorthoclase

ex. Dr. Krantz (Bonn/Germany)

Description Tabs

Description
Locality: 
Larvik, Vestfold og Telemark, Norway
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 4.7 × 2.2 cm
Description

A specimen of anorthoclase in matrix

Mineral Data
What's on the rock

Anorthoclase

Polymorph of: 
Formula: 
(Na,K)AlSi3O8
Group Parent: 
Feldspar Group
Strunz: 
9.FA.30*
Crystal System: 
Triclinic
Hardness: 
6 - 6.5
Colour: 
white, colourless, greyish pink
Streak: 
white
Type Locality: 
Pantelleria Island, Trapani Province, Sicily, Italy