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: 4.7 × 2.7 × 2.3 cm = 1.85” × 1.06” × 0.91”
Main crystal size: 0.9 × 0.8 cm = 0.35” × 0.31”