Bultfonteinite with Hydroxyapophyllite-(K) and Calcite (Ref: EC63R1)
N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province South Africa
34mm x 27mm x 29mm
minID: D37-331
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: 3.4 × 2.7 × 2.9 cm = 1.34” × 1.06” × 1.14”
Main crystal size: 0.7 × 0.7 cm = 0.28” × 0.28”
From: Fabre Minerals
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See Also
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calcite and garnets
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