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Apatite & Quartz

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RBR689736

Apatite & Quartz

Description Tabs

Description
Locality: 
Krupka, Krušné Hory, Ústí nad Labem Region, Czech Republic
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
13 × 10 × 6.5 cm
Description

This is a top quality specimen for apatite from Krupka. The item shows dozends of blueish apatite-crystals in association with albite and quartz. Some quartz-crystals are developed as scepters even. The specimen was collected in the 1960s and part of an old collection in Fürth/Germany. It comes with the original label and an old labeled box. Such specimens are very seldom to obtain.

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

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