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Cassiterite & Schorl

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PJM45137

Cassiterite & Schorl

Description Tabs

Description
Locality: 
Mount Cleveland Mine, Luina, Heazlewood, Waratah-Wynyard Municipality, Tasmania, Australia
Size Range: 
Small miniature (3-4.5 cm)
Size: 
1.1 × 3.8 × 3 cm
Description

Cassiterite crystals are actually very rarae at this massive tin deposit, where the cassiterite is normally richly disemminated through the sulphide matrix.

This specimen is one of the exceptions with a vail of tourmaline  crystals; a dark green schorl is studded with cassiterite crystals. These cassiterites are also pierced by numerous acicular tourmaline crystals

Mineral Data
What's on the rock

Cassiterite

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

Schorl

Formula: 
Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Strunz: 
9.CK.05
Hardness: 
7.0
Earthstones Australia

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