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Brewsterite-Sr & Baryte

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MEX149281

Brewsterite-Sr & Baryte

Type Locality

Description Tabs

Description
Locality: 
Whitesmith Mine, Strontian, Argyll, Scotland, United Kingdom
Size Range: 
Thumbnail (1-3cm)
Size: 
2.4 × 2.2 × 2.7 cm
Description

Columnar, colorless brewsterite crystals from the classic place of discovery. The tabular, white aggregat is possilbe barite.

Mineral Data
What's on the rock

Brewsterite-Sr

Formula: 
(Sr,Ba,Ca)[Al2Si6O16]·5H2O
Strunz: 
9.GE.20
Hardness: 
5.0
Colour: 
White
Streak: 
White
Type Locality: 
Strontian, North West Highlands (Argyllshire), Scotland, UK

Baryte

Formula: 
BaSO4
Strunz: 
7.AD.35
Hardness: 
3.0 - 3.5
Streak: 
White