N'Chwaning II Mine, N'Chwaning mining area, Kalahari manganese field (KMF), Joe Morolong, John Taolo Gaetsewe, Northern Cape Province South Africa (1987)
Specimen size: 8.7 × 6.2 × 3.4 cm = 3.43” × 2.44” × 1.34” Main crystal size: 0.7 × 0.2 cm = 0.28” × 0.08”