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Shijiangshanite With Calcite & Andradite

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PPM1093422

Shijiangshanite With Calcite & Andradite

Radioactive

Description Tabs

Description
Locality: 
Shijiangshan Mine, Hexigten Banner, Chifeng City, Inner Mongolia, China (Peoples Republic)
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
2.6 × 3.7 × 2.7 cm
Weight: 
22.00gr
Description

Nice specimen from a very small new find of the extremely rare minerals Shijiangshanite (red to pink crystals) with Shinichengite (colorless) and calcite/datolite/andradite skarn matrix from the Shijiangshan mine, Hexigten Banner, Chifeng City, Inner Mongolia, China.

The Shijiangshan mine has become an important locality for extremely rare borate minerals, and is the type locality for both these species (Shijiangshanite and Shinichengite), with 36 minerals known from the deposit to date. This is an excellent thumbnail-size example of the find, very rich, that won't "break the bank." This find was one SMALL pocket, which I obtained most of. Very rare material!! 

Mineral Data
What's on the rock

Shijiangshanite

Formula: 
Pb3CaAl(Si5O14)(OH)3 · 3H2O>
Strunz: 
9.DK.
Crystal System: 
Trigonal
Type Locality: 
Shijiangshan Mine, Hexigten Banner, Chifeng City, Inner Mongolia, China

Calcite

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

Andradite

Formula: 
Ca3Fe3+2(SiO4)3
Strunz: 
9.AD.25
Crystal System: 
Isometric
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Drammen, Buskerud, Norway

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