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Arizona Gold & Silver Inc. Commences Metallurgical Column Leach Test Work on the Philadelphia Gold-Silver Project, Arizona
(TheNewswire) Vancouver, British Columbia - TheNewswire - December ...
About this update from Arizona Gold & Silver Inc.
[{"type":"text","content":"Arizona Gold & Silver Inc. Commences Metallurgical Column Leach Test Work on 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 Vancouver, British Columbia -\n \n \n TheNewswire -\n \n \n December\n \n \n 12\n \n \n ,\n2023 -\n \n \n \n Arizona\nGold & Silver Inc. (TSXV:\n \n \n \n \n \n AZS\n \n \n \n \n \n )\n \n \n \n \n \n (\n \n \n OTC:AZASF\n \n \n )\n \n \n announces it\nhas commenced initial column leach test work on the Philadelphia\nGold-Silver Property, located in Mohave County, Arizona.\n \n \n \n \n Mr. Greg Hahn, VP Exploration commented,\n“\n \n \n \n Previous metallurgical\ntest work completed by the Company in 2020 on the north end of the\nproperty demonstrated the amenability of both low and high gold grades\nto cyanide leaching, achieving 89-99% gold extraction under agitation\nleach conditions at -104 micron grind. Silver recovery was not\naddressed in those tests. Column leach tests are required to assess\nthe potential for low-cost heap leaching of the stockwork mineralized\nzone and to address the extraction of silver.\n \n \n \n \n \n We have commenced column leach test\nwork on two bulk samples taken from underground workings and from a\nsurface mining bench.  Heap leaching is the most cost-effective\nmethod for recovering precious metals from bulk tonnages of stockwork\nmaterial. Column leach tests are the standard method for determining\nthe amenability of oxide gold and silver bearing material to heap\nleach methods. This program will establish on a preliminary basis the\noptimum crush and recovery characteristics for potential heap\nleaching.”\n \n \n \n \n \n The Company has submitted 429 kilograms of bulk material from two\nsample sites for testing at McClelland Laboratories Inc. in Sparks,\nNevada. These sample represent the two dominant metallurgical types\npresent on the property:  stockwork quartz in dominantly TR2 rhyolite\nand stockwork quartz in dominantly granite. The test work will consist\nof three columns from each bulk sample at crush sizes of -1/4 inch\n(6.3mm), -3/8 inch (9.5mm) and -1/2 inch (12.5mm) particle size.\nBottle roll leach tests will also be done on -10 mesh material. Tails\nanalyses will be included to assess ultimate gold an...