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Apatite & Cassiterite

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MMM52064

Apatite & Cassiterite

Description Tabs

Description
Locality: 
St Michaels Mount, Marazion, Cornwall, United Kingdom
Size Range: 
Miniature (4.5-7 cm)
Size: 
3 × 6 × 3 cm
Description

A thin green apatite crystal measuring 1 cm with gilberite and minor cassiterite on granite matrix.

The apatite has a small area of the crystal which has cleaved off but still a rare location specimen.

Mineral Data
What's on the rock

Apatite

Synonym Of: 

Chlorapatite

Formula: 
Ca5(PO4)3Cl
Strunz: 
8.BN.05
Hardness: 
5.0

Fluorapatite

Formula: 
Ca2Ca3(PO4)3F
Strunz: 
8.BN.05
Hardness: 
5.0

Hydroxylapatite

Formula: 
Ca5(PO4)3(OH)
Strunz: 
8.BN.05
Hardness: 
5.0
Crystal System: 
Hexagonal
Hardness: 
5

Cassiterite

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