[...] the mineral community was elated when, about eight years later, many fine specimens of a poldervaartite-like mineral in cream to pink to red crystals from another locality in the Kalahari Manganese Field, the N'Chwaning H mine, appeared on the market. The Wessels mine specimens most likely contain real poldervaartite and, in some cases, also...

Olmiite and poldervaartite from the Kalahari manganese field northern cape province republic of South Africa