Olmiite & Bultfonteinite

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N'Chwaning No. 2 Mine, Kuruman, South Africa

Reference: 1392

Choice tan coloured Olmiite and snow-white acicular Bultfonteinite, exceptionally well crystallised formed over both sides of the specimen. Ex. Jim Knights specimen. Jim's label has the tan coloured crystals as Poldervaartite but recent analysis has shown them to be Olmiite.

Formulas: Olmiite CaMn²⁺[SiO₃(OH)](OH) ; Bultfonteinite Ca₂(HSiO₄)F ^. H₂O

Status: Sold

Dimensions: 55x25x18mm

Size: Miniature (M)