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Fluorite & Quartz

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MBM817478

Fluorite & Quartz

From an old collection of a doctor in chemistry from 1900-1930
Classic Locality

Description Tabs

Description
Locality: 
Marienschacht Mine, Wölsendorf, Bavaria, Germany
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
9 × 5 × 5 cm
Largest Crystal: 
1.80cm
Description

Fluorite, as a variety of fluorite, especially from Wölsendorf, Germany, that emits an odor of HF and ozone upon grinding due to the internal presence of free fluorine gas and colloidal calcium and the interaction of components with water upon grinding.German name referring to the stinky smell it gives off when broken

Mineral Data
What's on the rock

Fluorite

Formula: 
CaF2
Strunz: 
3.AB.25
Crystal System: 
Isometric
Hardness: 
4.0
Streak: 
White
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Quartz

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