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Olshanskyite On Magnetite With Roweite & Johnbaumite

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PMN687483

Olshanskyite On Magnetite With Roweite & Johnbaumite

Description Tabs

Description
Locality: 
Shijiangshan Mine, Hexigten Banner, Chifeng City, Inner Mongolia, China (Peoples Republic)
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 5 × 3 cm
Largest Crystal: 
3.00cm
Weight: 
83.00gr
Description

Sharp olshanskyite in a radiating cluster on magnetite and on the disctinctive matrix consisting of a mix green andradite and white johnbaumite. A nice combination specimen showing a range of intersting minerals from the 2017 find that re-defined the standard for olshanskyite. Read all about this mine and it's minerals in Lapis magazine.
Please have a look at the video to fully appreciate this piece from all sides.
We do combine shipping - just let us know!

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

Magnetite

Formula: 
Fe2+Fe3+2O4
Strunz: 
4.BB.05
Crystal System: 
Isometric
Hardness: 
5.5 - 6.5
Streak: 
Black

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

Johnbaumite

Formula: 
Ca5(AsO4)3OH
Strunz: 
8.BN.05
Hardness: 
4.5
Streak: 
White
Type Locality: 
Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA
Video

Olshanskyite, roweite, johnbaumite on andradite