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Kaminak Gold (TSXV:KAM) announced results of a metallurgical program at its Coffee gold project in Yukon. 23 out of 26 column leach tests resulted in over 90 percent gold recovery on Coffee oxide material at various crush sizes.

Kaminak Gold (TSXV:KAM) announced results of a metallurgical program at its Coffee gold project in Yukon. 23 out of 26 column leach tests resulted in over 90 percent gold recovery on Coffee oxide material at various crush sizes.

As quoted in the press release:

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 ½” crushed material averaged 93.5% (4 tests), and for Supremo 2” and Supremo ½” crushed material averaged 94.5% (4 tests), with very little difference between the 2” and ½’ crush sizes.

Column leach gold recoveries for oxide core composites for Latte 2” and Latte ½” crushed material averaged 94.2% (4 tests), and for Supremo 2” and Supremo ½” crushed material averaged 94.0% (4 tests), again with very little difference between the 2” and ½’ crush sizes.

Column leach gold recoveries for oxide core composites for the Double Double Deposit 2” and Double Double ½” crushed material averaged 95% (2 tests), and for the Kona Deposit 2” and Kona ½” 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.

Kaminak director of mine development, Fred Lightner, said:

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.

Click here to read the Kaminak Gold (TSXV:KAM) press release

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