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MEI Online: Plant Operation News: North America: August 30th 2005


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:: Star Diamond Project Processing Plant Recommissioned

George H. Read, P. Geo., Senior Vice President Exploration, is pleased to announce that the on-site processing plant at the Star Diamond Project in Canada has been recommissioned and some 2,100 wet tonnes of kimberlite have been processed to date. The kimberlite is part of an expanded bulk sample being collected from the underground workings as part of the prefeasibility study. To date, some 9,200 wet tonnes have been skipped to surface from the 235 metre level, from this phase of sampling.

The on-site processing plant has recently been upgraded with the addition of a tertiary cone crusher (Nordberg HP100) that has been installed to liberate locked diamonds from the plus 6 millimetre light fraction from the Dense Media Separation (DMS) plant. The kimberlite crushed by this additional crusher is added directly to the primary feed belt of the plant and, thus, eliminates the separate re-crush cycle that was formerly used to process this plus 6 millimetre light fraction. While kimberlite is still processed in 250 to 350 tonne batches, the continuous feed of each batch has significantly reduced the processing time. For example, a 350 tonne batch can now be processed in two days instead of three days that were required when the re-crush fraction was processed separately.




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