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Fluorite & Quartz

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MGR664224

Fluorite & Quartz

Description Tabs

Description
Locality: 
La Viesca Mine, Huergo, La Collada, Siero, Asturias, Spain
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
10.4 × 7.4 × 4.3 cm
Description

Crystals are up to 36 mm on edges, their termination is razor sharp, they show glassy character and superb luster. The colour is sky blue, which shows a very fine contrast to the tiny sparkling quartz crystals. Material in this quality and colour from La Viesca is very hard to obtain.

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