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Manganvesuvianite

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