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Manganvesuvianite

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PDM829216

Manganvesuvianite

Type Locality

Description Tabs

Description
Locality: 
NChwaning II Mine, Kuruman, Kalahari, Northern Cape Province, South Africa
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.5 × 1.3 cm
Description

Aggregate of dozens of manganvesuvianite crystals of dark reddish-brown colour and intense lustre. Some crystals are hollow, so they could be pseudomorphs (??), at least in some degree. Decent representative specimen from the type locality.

Ex Henk Smeets #2908.

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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