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LAURION's First 2019 Metallurgical Study Work on Surface Stockpile at Ishkoday Achieves 95% Gold Recovery
LAURION's First 2019 Metallurgical Study Work on Surface Stockpile at Ishkoday Achieves 95...
About this update from Laurion Mineral Exploration Inc.
[{"type":"text","content":"\n\n\n\nLAURION's First 2019 Metallurgical Study Work on Surface Stockpile at Ishkoday Achieves 95% Gold Recovery\n\n/* Style Definitions */\nspan.prnews_span\n{\nfont-size:8pt;\nfont-family:\"Arial\";\ncolor:black;\n}\na.prnews_a\n{\ncolor:blue;\n}\nli.prnews_li\n{\nfont-size:8pt;\nfont-family:\"Arial\";\ncolor:black;\n}\np.prnews_p\n{\nfont-size:0.62em;\nfont-family:\"Arial\";\ncolor:black;\nmargin:0in;\n}\n.prntac{\nTEXT-ALIGN: CENTER\n}\n\n\n\n\n\n\n\nCanada NewsWire\nTORONTO, May 14, 2019\n\n\n\n/THIS NEWS RELEASE IS INTENDED FOR DISTRIBUTION IN CANADA ONLY AND IS NOT INTENDED FOR DISTRIBUTION TO UNITED STATES NEWSWIRE SERVICES OR DISSEMINATION IN THE UNITED STATES./\n TORONTO, May 14, 2019 /CNW/ - LAURION Mineral Exploration Inc. (TSX.V: LME and OTCPINK: LMEFF) (\"LAURION\" or the \"Corporation\") is pleased to announce the 2019 metallurgical laboratory test work completed on its surface stockpile (the \"Stockpile\") emanating from the historic operation of the Sturgeon River Mine at the Corporation's wholly owned Ishkoday Project (\"Ishkoday\"). XPS Expert Process Solutions of Falconbridge (Ontario) performed the metallurgical and mineralogical testing.\nThe purpose of the test work was a follow-up of the 2010 and 2014 testing, designed to evaluate the gravity recoverable gold followed by flotation of the gravity tailings to recover any remaining gold. The gravity test work was conducted on a 30kg sub-sample via a Knelson Concentrator of blended feed supplied by LAURION; whereas flotation testing was conducted on a 5kg sub-sample of the Knelson tailings. Additional mineralogy work was completed on 2 Knelson concentrate and 10 Knelson tailing subsamples. \nThe following is a summary of the 2019 test results:\nHead assay analyses for gold and base metals yielded 1.85, 0.45 and 0.54 g/t gold; whereas there was trace copper, zinc and lead: Sulphur averaged 0.32%, Iron at 4% and Silica (as SiO2) at 61%Some 60% of the gold was recovered to the Knelson concentrate at 187 times upgrading to 91.8 g/t gold Gravity separation is most effective if the gold is liberated or locked with pyrite, and its performance may improve with finer crushingA further 35% of the gold is recoverable by flotationGold appears mainly as Electrum (98%), with the remainder in pyrite: Electrum is a naturally occurring alloy of gold, silver and tra...