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Hydroxylapatite On Actinolite

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NSS217901

Hydroxylapatite On Actinolite

Description Tabs

Description
Locality: 
Oksøyekollen, Snarum, Modum, Viken, Norway
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 3.5 × 3 cm
Description

interesting specimen of uncommon apatite

Mineral Data
What's on the rock

Hydroxylapatite

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

Actinolite

Formula: 
☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Strunz: 
9.DE.10
Crystal System: 
Monoclinic - Prismatic
Hardness: 
5.0 - 6.0
Streak: 
White

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