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Shigaite & Rhodochrosite & Gageite

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ESM541694

Shigaite & Rhodochrosite & Gageite

Description Tabs

Description
Locality: 
NChwaning Mines, Kuruman, Northern Cape Province, South Africa
Class: 
Combination
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 2.4 × 2.3 cm
Description

Yellow shigaite blades with pink rhodochrosite crystals and fibrous greyish gageite crystals on matrix

Mineral Data
What's on the rock

Shigaite

Formula: 
Mn6Al3(OH)18[Na(H2O)6][SO4]2·6H2O
Strunz: 
7.DD.35
Hardness: 
0.0
Type Locality: 
Ioi mine, Ritto City, Shiga Prefecture, Kinki Region, Honshu Island, Japan

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

Gageite

Formula: 
Mn21(Si4O12)2O3(OH)20
Strunz: 
9.DH.35
Crystal System: 
Triclinic Monoclinic
Hardness: 
3.0
Type Locality: 
Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA