|AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from South Africa > Bultfonteinite and Olmiite
|Bultfonteinite and Olmiite
|N'Chwaning II Mine, Kalahari Manganese Field, Northern Cape Province, South Africa (Type Locality for Olmiite)
|Double-sided cluster of lustrous white acicular bultfonteinite crystals to 4 mm long bundled aggregates of subparallel crystals with lustrous translucent beige-colored olmiite crystals to 3 mm over both sides of manganese-rich black matrix. The olmiite fluoresces red and the bultfonteinite fluoresces white under 365 nm LW UV illumination
|For reference only
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