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Sapphire In Mullite

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PCZ182126

Sapphire In Mullite

Type Locality

Description Tabs

Description
Locality: 
Seabank Villa, Kilfinichen, Loch Scridain, Isle of Mull, Scotland, United Kingdom
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 4.5 × 3 cm
Description

Deep blue reflective sapphires in mullite from the type locality. This is a very interesting specimen from a very rarely offered type locality.

Mineral Data
What's on the rock

Sapphire

Variety Of: 

Corundum

Formula: 
Al2O3
Strunz: 
4.CB.05
Hardness: 
9.0
Formula: 
Al2O3
Hardness: 
0.0

Mullite

Formula: 
Al4+2xSi2-2xO10-x
Strunz: 
9.AF.20
Crystal System: 
Orthorhombic
Hardness: 
6.0 - 7.0
Type Locality: 
Seabank Villa, Isle of Mull, Strathclyde (Argyllshire), Scotland, UK
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