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Oyelite Bultfonteinite Image

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 Oyelite, Bultfonteinite

Large Oyelite Image

Mineral: Oyelite: Ca10B2Si8O29ยท12(H2O)  
Bultfonteinite: Ca2SiO2(OH,F)4
Comments: White encrustation of oyelite covering brownish botryoidal bultfonteinite.
Location: N'Chwaning Mine, Kalahari Manganese Field, Northern Cape Province, South Africa.
Scale: 2 x 4 cm.
Copyright: © John Veevaert
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