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Apatite With Siderite

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QRI632769

Apatite With Siderite

Former collection Burger
Classic Locality

Description Tabs

Description
Locality: 
Chriegalp Valley, Binn, Goms, Valais, Switzerland
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.2 × 5.5 × 3.1 cm
Largest Crystal: 
0.40cm
Weight: 
80.00gr
Description

Miniature plate with over a dozen complex crystalized, white-to-transparent apatite crystals. They show a great lustre and are elegantly positioned in the oxide-stained fissure of metamorphic rock. Associated, some minor mica and a few brown, very lustrous siderite crystals.

Former collection Burger (Switzerland). Pre-1950s specimen, labeled in modern times.

Previous labels supplied (not photographed)
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

Siderite

Formula: 
FeCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.5
Streak: 
White

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