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Fluorite & Quartz

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KFT56672

Fluorite & Quartz

Description Tabs

Description
Locality: 
Heights Quarry, Westgate, Weardale, County Durham, United Kingdom
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 3.5 × 3.5 cm
Largest Crystal: 
1.70cm
Description

Green  fluorite is covered with quartz.  One crystal in the middle shows a blue color by daylight.

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