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Sanidine

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AST906561

Sanidine

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Description
Locality: 
Kakourou, Aridhaia, Pélla, Central Macedonia, Greece
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 3.3 × 2.2 cm
Description

Intergrown sanidine crystals showing Carlsbad and Baveno twinning, on trachyte rock matrix. Such intergrown crystal groups are the highlighs from the locality and hard to find, especially in this condition.

Mineral Data
What's on the rock

Sanidine

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Crystal System: 
Monoclinic - Prismatic
Hardness: 
6.0
Streak: 
White
Type Locality: 
Drachenfels, Königswinter, Siebengebirge, North Rhine-Westphalia, Germany

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