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Johnbaumite & Roweite

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PMN670169

Johnbaumite & Roweite

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: 
4.5 × 3.5 × 2.5 cm
Largest Crystal: 
1.00cm
Weight: 
30.00gr
Description

Johnbaumite is probably the most exciting discovery of the 2017 finds in the borate deposits in Inner Mongolia. This specimen has distinct crystals and a nice orange roweite in association.
Johnbaumite was never found in quality crystals and is the rare arsenic analogue of hydroxcyl apatite.

 

Mineral Data
What's on the rock

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

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