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Arizona Gold&Silver Achieves +90% Gold Extraction by Agitation Leach and 61%-73% Extraction by Column Leaching at the Philadelphia Gold-Silver Project, Arizona
(TheNewswire) Vancouver, British Columbia – TheNewswir...
About this update from Arizona Gold & Silver Inc.
[{"type":"text","content":"Arizona Gold&Silver Achieves +90% Gold Extraction by Agitation Leach and 61%-73% Extraction by Column Leaching at the Philadelphia Gold-Silver Project, Arizona\n\n\n (TheNewswire)\n \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n Vancouver, British\nColumbia –\n \n\n\n\n TheNewswire -\n \n\n\n\n October 23, 2024\n–\n \n\n\n\n Arizona Gold & Silver Inc.\n \n\n\n\n (TSXV: AZS)\n \n\n\n\n (\n \n\n\n\n OTCQB:AZASF\n \n\n\n\n ) is pleased to announce it has received the\nfinal metallurgy report from McClelland Laboratories on agitation and\ncolumn leach test work performed on two bulk samples from the\nPhiladelphia gold-silver property.\n \n\n\n The\nsamples were entirely of oxidized material taken from underground and\nsurface workings.  The objective of the program was to demonstrate\nthe amenability of 1-2 grams per tonne gold material for heap\nleaching, the most cost-effective method for recovering precious\nmetals from bulk tonnage gold deposits of this type.\n \n\n\n\n Column leach tests are the standard laboratory method\nfor determining the amenability of oxide gold and silver bearing\nmaterial to heap leach methods. The program established on a\npreliminary basis the optimum crush and recovery characteristics of\nthe 1-2 grams per tonne gold material tested.\n \n\n\n Agitation leaching at various grind sizes\nwas performed to assess gold and silver extractions for milling\npurposes. The column test work was completed at several crush sizes to\nassess gold and silver extractions under simulated heap leach\nconditions.\n \n\n\n\n\n Greg Hahn, Vice President of Exploration, commented\n \n\n “We have yet to see\nsulphides in old workings or in our drilling at Philadelphia. That\nbeing the case, we are very pleased with the results of test work\non\n \n\n what I see as potentially\nlarge volumes of oxide material.\n \n\n The program demonstrated excellent\n \n\n g\n \n\n old\nextractions and modest silver extractions (as expected). Importantly,\nthe column leach work demonstrates that our metal extractions at\nPhiladelphia are in line with other heap leach operations in the\nregion. The columns were still leaching gold at the end of the 177-day\ntest period. Projections out to 360 days indicate additional\nextractions to 70% to 80% could be achieved, as during a commercial...