Shigaite on Rhodochrosite

N'Chwaning I Mine, N'Chwaning mining area, Kuruman, Kalahari manganese field (KMF), Northern Cape Province  South Africa (1996)

Specimen size: 3.7 × 2.9 × 1.8 cm = 1.46” × 1.14” × 0.71”
Main crystal size: 0.3 × 0.2 cm = 0.12” × 0.08”