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Minera Alamos Inc.: Metallurgical Tests Demonstrating Gold Recoveries in Excess of 90% Enhance the Economic Potential at La Fortuna
TORONTO, ONTARIO--(Marketwired - June 14, 2016) - Minera Alamos Inc. (TSX VENTURE:MAI) (the "Company" or "Minera Alamos") is pleased to provide updates on the o
About this update from Minera Alamos Inc.
[{"type":"text","content":"TORONTO, ONTARIO--(Marketwired - June 14, 2016) - Minera Alamos Inc. (TSX VENTURE:MAI) (the \"Company\" or \"Minera Alamos\") is pleased to provide updates on the ongoing metallurgical testwork targeting gold recovery optimization at its La Fortuna Gold Project (\"La Fortuna\") located in Durango Mexico. Further metallurgical work is underway to evaluate an optimal plant flow sheet to be incorporated in the Pre-Feasibility Study (\"PFS\") scheduled for release later this year. \"Compared to typical gold heap leach recoveries, these new results represent an approximate 50% increase in potential gold production from the La Fortuna gold resource. In addition, the ability to pre-concentrate the gold prior to leaching allows for further reductions in the scope and capital required for downstream processing equipment\", said Darren Koningen, President of Minera Alamos. \"These favorable results allow us to consider alternative processing methods other than heap leaching, possibly increasing the economic potential of the project significantly\". Highlights: Gold is predominantly in the form of free grains that are readily recoverable. Based on the samples tested, recoveries averaging approximately 98% were achieved via direct cyanidation of the ground mineral samples; GRG (gravity recoverable gold) results demonstrating that in excess of 80% of the gold from the sample materials can be achieved via centrifugal gravity concentration alone; 97-98% of the gold reports to a high grade bulk flotation concentrate representing only 10% (by mass) of the initial sample material; High gravity/flotation recoveries are maintained at relatively coarse grind sizes in excess of 200 microns. Summary of Metallurgical Testwork The ongoing metallurgical testwork program for the La Fortuna project is being performed at SGS Canada Inc. located in Lakefield, Ontario. SGS Canada is an ISO/IEC 17025 accredited metallurgical testwork and analysis facility with an extensive history of gold process development activities, and is at arm's length to Minera Alamos. Samples for the current round of testwork were taken from available diamond drill core from previous drill programs at the La Fortuna project (2008 twin hole drilling program). Core was selected from eight different intervals that represented both high and low grade zones within the deposit as well as di...