10:18 AM EST - Golden Minerals Company : Has received promising results from metallurgical test work conducted on pyrite-arsenopyrite flotation concentrates from its Velardeña Properties located in Durango, Mexico. Gold and silver recoveries of 91% and 92%, respectively, were obtained from cyanide leaching of the bio-oxidized concentrate samples. BIOX* achieved 93% oxidation on the concentrate sample in batch tests, which the Company believes should translate to a five to six-day retention time in a commercial bio-oxidation plant. Golden Minerals Company
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