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Apatite With Biotite

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CLB101702

Apatite With Biotite

ex coll. Wittig, Friedewald
Classic Locality

Description Tabs

Description
Locality: 
Evje Og Hornnes, Agder, Norway
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.8 × 4.8 × 5.5 cm
Largest Crystal: 
1.30cm
Description

No, not another heliodor from Evje, but a rarely seen blue apatite crystal with shiny black biotite in a quartz-feldspar matrix.

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

Biotite

Group Parent: 
Mica Group

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