Canadian Critical Minerals (TSXV:CCMI; OTCQB:RIINF) secured a Steinert KSS 100 X-ray transmissive ore sorter for upgrading of copper-bearing material currently stockpiled on surface at its Bull River mine project near Cranbrook, B.C.
The sorter will be leased for 12 months during which time the company plans to screen, crush, and sort the entire stockpile of approximately 180,000 tonnes. As a result of securing the sorter, the company has decided to postpone the previously announced ore characterization and sorting trial with MineSense Technologies.
Previously, the company completed a positive ore sorting study on the Bull River stockpile material using a similar X-ray technology (XRT) supplied by Tomra. In that study, 61% of the material reporting to the sorter was accepted as mineralized and 39% was rejected as non-economic low-grade or waste.
The average grade of rejected material was 0.17% copper-equivalent which is well below the cut-off grade for the current resource. The company intends to pre-screen the entire stockpile, thereby removing approximately 25% of the mineralized material as fines. The remaining oversize material will be crushed to minus seven centimetres and this material will report to the sorter.
"Access to this sorter will allow the company to segregate the surface stockpile and separate low-grade and/or waste material that would otherwise be sent to the mill. In addition, the company will be able to assay the fines and concentrated mineralized material to determine a grade for the material prior to milling," said Ian Berzins, president and CEO of Canadian Critical Minerals.
To learn more about the sorter, visit www.SteinertGlobal.com. To learn more about the Bull River mine project, visit www.CanadianCriticalMineralsInc.com.