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Jwaneng Large Diamond Pilot Project

Debswana Major Projects commonly referred to at Horizon 2 Projects is on a steadfast path to deliver high impact projects for the business. The Large Diamond Pilot project, whose footprint lies within Jwaneng Mine, is currently in operation after a successful on-time and on-budget construction execution.

The pilot plant project was established to inform a business case for an optimised large diamonds recovery solution and was, therefore designed with due consideration for re-use as a final solution after a two-year piloting exercise.

The facility has a peak treatment capacity of 600 tons per hour and deploys the latest diamond recovery technology specifically designed to identify and recover large stones. This technology, known as X-Ray Transmission (XRT), is the first of its kind for Debswana and has a unique capability of high detection rate for all diamonds, including Type-II diamonds, compared to other traditional technologies. Type IIa diamonds are the most chemically pure diamonds and have the highest thermal conductivity and are often colorless.

​The Large Diamond Pilot project interfaces with Jwaneng Main Treatment Plant (MTP) process to enable recovery of +25mm diamonds prior to the secondary crushing circuit.