Letšeng Diamonds Geology – Letšeng Diamonds
The diamonds grew from carbon over millions of years within the stable lithospheric mantle. Research shows that most diamonds range in age between 1-billion years and 3, 3-billion years. Letšeng has two kimberlite pipes and numerous kimberlite dykes. The Main Pipe was 17,2 hectares in size at the surface, and the Satellite Pipe 6,5 hectares.