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Hydroxylapatite & Magnetite

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SER1167648

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Description
Locality: 
Cerro Huañaquino, Potosi Department, Bolivia
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 4.5 × 1.1 cm
Description

some prismatic, white crystals of hydroxylapatite on matrix with several black magnetite crystals

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

Magnetite

Formula: 
Fe2+Fe3+2O4
Strunz: 
4.BB.05
Crystal System: 
Isometric
Hardness: 
5.5 - 6.5
Streak: 
Black

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40
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Start 03 Mar 18:00
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