Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Sturmanite

Views:
Watches:
CHP839433

Sturmanite

Classic Locality

Description Tabs

Description
Locality: 
NChwaning II Mine, Kuruman, Kalahari, Northern Cape Province, South Africa
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 5.5 × 4 cm
Weight: 
315.00gr
Description

specimen wih some very good exagonal yellow or light brownish crystals of sturmanite on matrix.

c. 1598

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

Seller Information

Payment options: offline, paypal_wpp, paypal_wps