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Groutite On Rhodochrosite

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Groutite On Rhodochrosite

Classic Locality

Description Tabs

Description
Locality: 
NChwaning III Mine, Kuruman, Kalahari, Northern Cape Province, South Africa
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.7 × 7.3 × 4.2 cm
Largest Crystal: 
1.00cm
Weight: 
427.00gr
Description

Groutite on Rhodocrosite from NChwaning 111.  This is a new find, and nice...

Mineral Data
What's on the rock

Rhodochrosite

Formula: 
MnCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Cavnic Mine (Kapnikbánya), Cavnic (Kapnic; Kapnik), Maramureș Co., Romania

Groutite

Formula: 
Mn3+O(OH)
Strunz: 
4.FD.10
Hardness: 
3.5 - 4.0
Type Locality: 
Sagamore Mangan No. 2 pit, Ironton, Cuyuna North Range, Crow Wing Co., Minnesota, USA