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: 3.4 × 2.7 × 2.9 cm = 1.34” × 1.06” × 1.14”
Main crystal size: 0.7 × 0.7 cm = 0.28” × 0.28”