Fanlike groups of snowy white acicular crystals of Bultfonteinite replacing the faces of short elongated crystals of Hydroxyapophyllite-(K) which has a pseudocubic habit. In some cases the replacement is deeper and forms a more or less complete pseudomorph of the preexisting Hydroxyapophyllite-(K). All are on a matrix of clear, complex, crystals of Calcite. We’ll send a copy of the analysis to the buyer of the piece. This specimen has been photographed and published as a reference for the Bultfonteinite species in the magazine ‘Lapis‘ number 02/2021, page 9
N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province South Africa (2006)
Specimen size: 3.6 × 3.1 × 2.8 cm = 1.42” × 1.22” × 1.10”
Price:
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