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: 3.6 × 3.1 × 2.8 cm = 1.42” × 1.22” × 1.10”
Main crystal size: 0.7 × 0.6 cm = 0.28” × 0.24”