Kaminak Reports Over 90% Gold Recovery
VANCOUVER, Kaminak Gold Corporation (KAM) reported results of the comprehensive metallurgical test work program at the Coffee Gold Project, Yukon, that will provide process input data for the Feasibility Study scheduled for completion in early 2016. The primary objectives of the metallurgical program were to confirm the previous excellent metallurgical test results, expand the testing to all currently known potential mine areas identified, and determine optimal gold recoveries and crush sizes for the Feasibility Study.
Highlights from this work include: Column leach gold recoveries for bulk surface trench oxide samples for the Latte Deposit 6" crushed material averaged 88.5% (2 tests) and for the Supremo Deposit 6" crushed material averaged 87% (2 tests). Column leach gold recoveries for bulk surface trench oxide samples for Latte 2" and Latte 1/2" crushed material averaged 93.5% (4 tests), and for Supremo 2" and Supremo 1/2" crushed material averaged 94.5% (4 tests), with very little difference between the 2" and 1/2' crush sizes. Column leach gold recoveries for oxide core composites for Latte 2" and Latte 1/2" crushed material averaged 94.2% (4 tests), and for Supremo 2" and Supremo 1/2" crushed material averaged 94.0% (4 tests), again with very little difference between the 2" and 1/2' crush sizes. Column leach gold recoveries for oxide core composites for the Double Double Deposit 2" and Double Double 1/2" crushed material averaged 95% (2 tests), and for the Kona Deposit 2" and Kona 1/2" crushed material averaged 89.5% (2 tests). Agglomeration was not required for any of the column tests and low reagent consumption was reported. All of the column leach tests at the 0.5 inch size were performed at a temperature of 4 degrees Centigrade to simulate cold climate leaching. Column leach test work was conducted by Kappes, Cassiday and Associates, industry leading experts in heap leach processing.
Fred Lightner, Kaminak Director of Mine Development, stated: "This latest round of metallurgical test work strongly confirms previous testing. The volume of test work now completed on oxide has consistently produced high gold recoveries demonstrating the remarkable amenability of the Coffee deposits to the heap leach process. Crush size and recoveries from all facies, including oxide, upper and mid transitional materials, will be further evaluated in conjunction with the results of the 2015 infill drilling and the updated block models. This analysis will then determine the final decision around crush size to be incorporated into the feasibility study due out in early 2016."