Marsfontein & Surrounds
Marsfontein is renowned in South African diamond history, a small kimberlite mine that repaid its capital in less than four days in 1998 due to exceptionally high grades. Although the main orebody was exhausted over 20 years ago, BMIN continues to derive value from the surrounding geology. The Company holds a 900.7-hectare Prospecting Right over part of the Marsfontein farm, encompassing at least five known kimberlites (M2, M3, M7, M8, M9), all diamondiferous but never fully developed.
The M3 kimberlite is BMIN’s primary target. Historical data show an exposed strike of about 100 m and a width of up to 10 m, with bulk-sample grades ranging from 13.9 to 137 cpht—indicating a high-grade zone within a lower-grade fissure. Recovered diamonds were of good quality, colour, and size distribution. M3 is located on elevated, easily accessible ground, with remnants of previous workings that could allow a swift restart with minimal overburden removal.
