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Cassiterite

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MGR1040624

Cassiterite

Classic Locality

Description Tabs

Description
Locality: 
St Day, Cornwall, United Kingdom
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.8 × 3.7 × 2.4 cm
Description

Very well developed crystals of cassiterite from the UK. There is a main crystal nicely exposed positioned at the top. It has sharp edges and is lustrous all over.

Mineral Data
What's on the rock

Cassiterite

Formula: 
SnO2
Strunz: 
4.DB.05
Crystal System: 
Tetragonal
Hardness: 
6.0 - 7.0