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Realgar & Calcite

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Realgar & Calcite

Description Tabs

Description
Locality: 
Shimen Mine, Shimen County, Hunan Province, China (Peoples Republic)
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
14 × 7.3 × 7.3 cm
Description

Lustrous transparent red realgar crystals up to 18 mm long in combination with lustrous calcite crystals and tufts of white picropharmacolite crystals up to 1 mm long. The lustrous calcite crystals are translucent with a fine striped structure on the faces. Some of the realgar crystals are incomplete which may be visible, but does not quite draw attention. A wonderful piece all in all!

Mineral Data
What's on the rock

Realgar

Formula: 
As4S4
Strunz: 
2.FA.15a
Crystal System: 
Monoclinic
Hardness: 
1.5 - 2.0

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White
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