Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Realgar With Calcite & Picropharmacolite

Views:
Watches:
BMM838492

Realgar With Calcite & Picropharmacolite

Description Tabs

Description
Locality: 
Shimen County, Changde, Hunan Province, China (Peoples Republic)
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
11 × 7 × 5.5 cm
Description

Highly lustrous calcite crystals up to 4.5 cm long partially covered with bright red, transparent realgar 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. The realgar crystals up to 2 cm in length have grown densely and massively on the specimen. Here are also tufts of white picropharmacolite crystals up to 1 mm long which contrast well with the intense red color. Some of the realgar crystals are incomplete which may be visible, but does not quite draw attention. Well crystalized all around, only a small part was extracted from the rock. An extraordinary 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

Picropharmacolite

Formula: 
Ca4Mg(AsO4)2(HAsO4)2·11H2O
Strunz: 
8.CH.15
Crystal System: 
Monoclinic Needles and encrustations
Hardness: 
1.0 - 2.0
Streak: 
White
Type Locality: 
Ore dumps, Richelsdorf Smelter, Süss, Richelsdorf District, Hesse, Germany