Bultfonteinite with Hydroxyapophyllite-(K) and Calcite (Ref: EV12R1)
N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province South Africa
42mm x 26mm x 30mm
minID: J5D-1Y4
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. Well send a copy of the analysis to the buyer of the piece.N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province South Africa (2006)
Specimen size: 4.2 × 2.6 × 3 cm = 1.65” × 1.02” × 1.18”
Main crystal size: 0.8 × 0.6 cm = 0.31” × 0.24”
From: Fabre Minerals
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