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Fluorite

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BMM667683

Fluorite

Description Tabs

Description
Locality: 
Weißeck Area, Murwinkel, Lungau, Salzburg, Austria
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
9 × 7.3 × 4.3 cm
Description

The fluorites from the Summit Cleft of Weisseck are internationally well-known. As a new find, there is the Ice cleft with its extraordinary quality. A third cleft, less known than the two other clefts but definitely noteworthy, is located on the Eastern slope of the Weisseck Mountain. It is a very dangerous place for collecting; the lime is broken in all directions by the frost. Large pieces of rock are stapled loosely. The rockhound has to crawl under the rocks and be very cautious when choosing which of them to remove, in order to prevent the house of cards from collapsing. If you are lucky, the reward is an excellent fluorite, characterized by its fantastic color and its translucency.

This fluorite shows an amazing blue translucent color and measures 2 cm on the edge. This kind of blue is one of the best blue colors from Weisseck fluorites. The faces have matt and silky luster with a fine structure. Bright calcites are partially crystallized on the fluorites. They show the growth as scalenohedra and this is typical for the Weisseck - it is considered as identification marks. The backside is also crystalized with calcites. An excellent piece – crystallized all around – only one side was from the rock. It should be highly ranked as a great rarity with fine quality!

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