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Olshanskyite With Andradite

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PMN756603

Olshanskyite With Andradite

Description Tabs

Description
Locality: 
Shijiangshan Mine, Hexigten Banner, Chifeng City, Inner Mongolia, China (Peoples Republic)
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 6 × 2.5 cm
Largest Crystal: 
1.00cm
Weight: 
99.00gr
Description

Small but sharp and gemmy olshanskyite cluster - forming the desirable rounded sprays with an accent of small green andradite. A good example for this species that before the finds in this decade were unknown as crystals. None have been found since 2018.

 

Mineral Data
What's on the rock

Olshanskyite

Formula: 
Ca3[B(OH)4]4(OH)2
Strunz: 
6.CA.55
Hardness: 
4.0
Type Locality: 
Titovskoe B deposit, Tas-Khayakhtakh Range, Dogdo River Basin, Polar Yakutia, Sakha Republic (Saha Republic; Yakutia), Eastern-Siberian Region, Russia

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