Recent recoveries of specials (diamonds weighing more than 10.8 carats) by Lulo alluvial mining company Sociede Mineria Do Lulo (SML) include two more large diamonds weighing 77 carats and 71 carats. [quote]
These specials follow the recent recovery of white Type IIa D-colour diamonds weighing 172 carats, 104 carats and 72 carats, as well as a 39 carat pink diamonds – the largest and most valuable fancy coloured diamond recovered at Lulo to date.
The five white diamonds, recovered in September, will be included in the diamond sales scheduled for the last quarter of 2016 – which is scheduled to take place mid-November.
Moreover, Lucapa and its partners – Angola’s national diamond company Endiama, and Rosas & Petalas – have commenced commissioning of the modules for the new XRT diamond processing and recovery stream.
The XRT technology and larger screens (55 mm) will, as part of the new processing stream at the 150 tph diamond processing plant, provide capacity to recover individual diamonds of up to 1 100 carats.
The XRT technology is also more efficient at recovering low-luminescing Type IIa diamonds.
To ensure grade and source integrity, the oversize material that has been stockpiled since February 2016, which now stands at about 19 000 bcm, will be managed and processed through the new XRT stream, over time, in batches separate to the ongoing oversize material recvovered and processed from daily mining operations at Lulo.
Lucapa has to date recovered more than 30 +50 carat diamonds and 6 +100 carat diamonds