KIMBERLITE EXPLORATION

In parallel with the alluvial mining operations, Lucapa and its partners are advancing a systematic kimberlite exploration program at Lulo.

This drilling and sampling program is designed to identify the primary hard-rock source, or sources, of the exceptional alluvial diamonds being recovered along the Cacuilo River valley.

By the end of 2018, a drilling campaign to test more than 90 targets proximal to, and/or upstream of, the alluvial mining blocks was close to completion. At that point, a total of 68 of those targets had been confirmed as kimberlites.

Drill core from the confirmed kimberlites is progressively logged and exported in batches to laboratories in South Africa and Canada for mineral chemistry analysis.

At the end of 2018, mineral chemistry results had been progressively received from 32 of the 68 targets confirmed as kimberlites, 11 of which were highlighted for follow-up testing.

The Lulo partners will review all kimberlite drilling and sampling results to guide follow-up programs on selected kimberlites once the current campaign is completed.