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Manganvesuvianite

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UVM837923

Manganvesuvianite

Type Locality

Description Tabs

Description
Locality: 
NChwaning II Mine, Kuruman, Kalahari, Northern Cape Province, South Africa
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 2.2 × 2.1 cm
Description

A rich toenail size specimen of manganvesuvianite from it's type locality.   This specimen consists of deep purple intergrown crystals that occasionally show beautiful internal reflections under strong light.   

Mineral Data
What's on the rock

Manganvesuvianite

Formula: 
Ca19Mn3+(Al,Mn3+,Fe3+)10(Mg,Mn2+)2(Si2O7)4(SiO4)10O(OH)9
Strunz: 
9.BG.35
Hardness: 
6.0 - 7.0
Streak: 
white
Type Locality: 
N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese field, Northern Cape Province, South Africa...

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