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Oligoclase

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SHS113769

Oligoclase

Description Tabs

Description
Locality: 
Custer County, South Dakota, United States of America
Size Range: 
Thumbnail (1-3cm)
Size: 
2.3 × 2.2 × 2.1 cm
Description

Massiv piece of oligoclase

Mineral Data
What's on the rock

Oligoclase

Variety Of: 

Albite

Formula: 
NaAlSi3O8
Strunz: 
9.FA.35
Hardness: 
6.0 - 6.5
Formula: 
(Na,Ca)[Al(Si,Al)Si2O8]
Strunz: 
9.FA.35
Hardness: 
6.0 - 6.5
Streak: 
White
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