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Fluorite & Quartz & Arsenopyrite

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MGR146461

Fluorite & Quartz & Arsenopyrite

Description Tabs

Description
Locality: 
Huanggang Mine, Hexigten Banner, Chifeng City, Inner Mongolia, China (Peoples Republic)
Size Range: 
Cabinet (10-18 cm)
Size: 
12.2 × 9.2 × 5.5 cm
Description

Main crystal is 29mm across. Most recent discoveries from Inner Mongolia only produce colourless specimen, not so here. Some modified sharp crystals show intense blue-green colour. When backlit you can see that there is a dark violet phantom. The contrast is spectacular, those crystals are set on snowy white quartz crystals - also some fluorite are covered with quartz. the matrix consists of arsenopyrite. very uncommon material from Huangang, that shows a great visual impact. one small zone backside is sawed, no significent damages.

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

Arsenopyrite

Formula: 
FeAsS
Strunz: 
2.EB.20
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0