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Apatite On Quartz

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WND805014

Apatite On Quartz

Classic Locality

Description Tabs

Description
Locality: 
Panasqueira Mines, Covilhã, Castelo Branco District, Portugal
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.2 × 2.7 × 3.1 cm
Description

This fine combination specimen features a single sharp and mirror bright hexagonal crystal of apatite accompanied by a glassy and well defined rockcrystal which is partially covered with lucent blades of muscovite. the colour of the also well developed apatite is deep olive green, it is mostly transparent and so far I can see, there are no significant imperfection visible by naked eye. A super, typical and contrastful specimen.

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

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White
Wendel Minerals

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