Bultfonteinite
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![Acicular crystals from the Wessels Mine in South Africa](/Images/godic/202501/02/Bultfonteinite-2298641249.jpg")
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Bultfonteinite, originally dutoitspanite, is a pink to colorless mineral with chemical formula Ca2SiO2(OH,F)4. It was discovered in 1903 or 1904 in the Bultfontein mine in South Africa, for which the mineral is named, and described in 1932.