Bultfonteinite with Hydroxyapophyllite-(K) and Calcite

N'Chwaning II Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  South Africa (2006)

Specimen size: 4.4 × 3.4 × 3.7 cm = 1.73” × 1.34” × 1.46”
Main crystal size: 0.9 × 0.8 cm = 0.35” × 0.31”