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Apatite Cassiterite & Tourmaline

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WND875104

Apatite Cassiterite & Tourmaline

Classic Locality

Description Tabs

Description
Locality: 
Panasqueira Mines, Covilhã, Castelo Branco District, Portugal
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.1 × 3.4 × 1.5 cm
Description

This is a nice combination piece with well developed, six-sided Apatite, multifaceted, black and lustrous Cassiterite and acicular, olive-green to brown Tourmaline, which is almost covering the matrix. The greenish Apatite itself is highly lustrous, sharp edged and transparent. A good specimen with only minor imperfections.

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

Tourmaline

Formula: 
A(D3)G6(T6O18)(BO3)3X3Z
Crystal System: 
Trigonal
Hardness: 
7
Wendel Minerals

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