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Olmiite - N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa (Type Locality) (#:MINS8791)

Specimen with orange-pink glassy crystals up to 5 mm set on calcite xls. From the type locality.

Formula :
(Ca,Mn2+[SiO3(OH)](OH)
System: orthorhombic Hardness:5 Rarity:very rare
Strunz id:VIII/B.22-25 - SILICATES
Name origin: Named for Filippo Olmi (CNR, Centre di Studio per la Minerogenesi ela Geochimica Applicata, Florence, Italy)

Specimen weight:63 gr.
Crystal size:Up to 5 mm
Overall size: 55mm x 33 mm x 35 mm




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Olmiite - N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa (Type Locality)

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