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Gageite & Calcite

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ESM1106623

Gageite & Calcite

Description Tabs

Description
Locality: 
NChwaning II Mine, Kuruman, Kalahari, Northern Cape Province, South Africa
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4 × 3 cm
Description

Lustrous colorless calcite crystals with tan colored gageite crystals

Mineral Data
What's on the rock

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

Calcite

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