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Tourmaline & Hydroxylapatite

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SER791066

Tourmaline & Hydroxylapatite

Description Tabs

Description
Locality: 
Beura Quarries, Beura-Cardezza, Verbano-Cusio-Ossola Province, Piedmont, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.1 × 2.6 × 1.7 cm
Description

some colourless apatite crystals on adularia with purple tourmaline

Mineral Data
What's on the rock

Tourmaline

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

Hydroxylapatite

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