'Gemstones' of the RED Kalahari

The large banded stones were found in the area shortly before Groblaarshoop in the Northern Cape.  After consulting the internet, the closest we could find was that it is a high-grade hematite deposit and can be traced from Pomfret in the north to Prieska in the south, a distance of 400km.

The smaller stones embedded in the rich burnt sands of the red Kalahari were found between these two points, a ways before Groblaarshoop.

Merle.
iPhone 4s.