N'Chwaning I Mine, N'Chwaning mining area, Kalahari manganese field (KMF), Joe Morolong, John Taolo Gaetsewe, Northern Cape Province South Africa (1978)
Specimen size: 2.5 × 1.9 × 1.2 cm = 0.98” × 0.75” × 0.47” Main crystal size: 1 × 0.4 cm = 0.39” × 0.16”