36 Diamonds Recovered at Lulo kimberlite L164 and kimberlite L056 samples
Lucapa Diamond Company and its project Lulo partners, Endiama and Rosas & Petalas, have recovered 23 diamonds from a second sample from kimberlite L164 and 13 diamonds from kimberlite L056.
Lulo kimberlite bulk sample KBS/164/02, totalling 365 m3 of kimberlite material was processed through the Lulo Kimberlite Bulk Sample Plant, yielding 16.32 carats at a recovered grade of 4.47 cphm3, with the largest diamond recovered weighing 2.38 carats. This is the highest grade yet recovered from a Lulo kimberlite bulk sample and is very encouraging for an early stage, small sample.
This is the second sample processed from kimberlite L164, which was excavated from a different area of the kimberlite to the previous sample KBS/L164/01. The total result of the two samples KBS/164/01 and 02 are set out below:
Kimberlite L164 is on the list of kimberlites selected for follow up work after the completion of the priority target bulk sampling program. A 902 m3 bulk sample taken from kimberlite L056 (KBS/056/01) was also processed recovering 13 diamonds with a total weight of 7.85 carats at a recovered grade of 0.87 cphm3, the largest weighing 2.08 carats.
The sample location was within the Cacuilo flood plain and proved difficult to excavate in the wet season. A further sample from kimberlite L056 is planned to be excavated and processed when ground conditions allow.
Kimberlite L164 is located south (upstream) of the Canguige Catchment area and was placed on the priority kimberlite bulk sample list due to its indicator mineral content. Kimberlite L056 is located near to mining block 57 and is adjacent to the Canguige catchment.
SOURCE:miningreview.com
