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Roweite Calcite & Johnbaumite

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PMN687470

Roweite Calcite & Johnbaumite

New Discovery

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: 
5 × 7 × 5.5 cm
Largest Crystal: 
1.50cm
Weight: 
104.00gr
Description

Combination specimen with very good roweite, some calcite and a small group of well formed johnbaumite crystals ( up to 3mm) on the disctinctive matrix in this case consisting of a mix green andradite and white johnbaumite. From the 2017 find that re-defined the standard for roweite and johnbaumite.
We do combine shipping - just let us know!

 

Mineral Data
What's on the rock

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

Calcite

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

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