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Olshanskyite On Roweite With Andradite

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PMN643417

Olshanskyite On Roweite With Andradite

Description Tabs

Description
Locality: 
Shijiangshan Mine, Hexigten Banner, Chifeng City, Inner Mongolia, China (Peoples Republic)
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 5 × 5 cm
Largest Crystal: 
1.00cm
Weight: 
93.00gr
Description

Not only a very good roweite cluster on this specimen of intense orange colour, but also rich in associated minerals such as andradite and olshanskyite (in sprays on roweite!) It display well in person for roweite but there is a lot to explore on a micro and macro level too. From the second wave of finds in 2017 when the good roweite started to trickle out. Keep in mind roweite has never been found in any location other then this one in decent crystals, only embedded cluster were known. It's a rare borate and it might very well be that the bonanaza is already over.

 

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

Roweite

Formula: 
Ca2Mn2+2B4O7(OH)6
Strunz: 
6.DA.25
Hardness: 
5.0
Type Locality: 
Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA

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