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Sturmanite

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ADX566254

Sturmanite

Classic Locality

Description Tabs

Description
Locality: 
Kuruman, Kalahari, Northern Cape Province, South Africa
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 6.7 × 3.2 cm
Description

A lot of lustrous, tiny orange crystals semitrasparent  on the matrix.

Mineral Data
What's on the rock

Sturmanite

Formula: 
Ca6(Fe3+,Al,Mn3+)2(SO4)2[B(OH)4](OH)12·25H2O
Strunz: 
7.DG.15
Crystal System: 
Trigonal
Hardness: 
2.5
Type Locality: 
Black Rock Mine, Black Rock, Kalahari manganese field, Northern Cape Province, South Africa
Davide Zaccaria

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

As a mineral collector, I consider the quality of specimens and the customer service very very important, so if for every reason you have a problem with the transaction, please let me know as soon as possible. If  your specimen is damaged upon delivery, send me some photos of the minerals, possibly within 1 week, and I'll refund the cost of the damaged items.