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Positive Initial Metallurgical Results from Azarga Metals' Unkur Copper-Silver Project
Recoveries up to 92% copper and 88% silver in sulphide material using conventional flotatio...
About this update from Azarga Metals Corp.
[{"type":"text","content":"Positive Initial Metallurgical Results from Azarga Metals’ Unkur Copper-Silver ProjectRecoveries up to 92% copper and 88% silver in sulphide material using conventional flotation methodsCommercially standard ~30% copper concentrate achievable with sulphide materialRecoveries up to 96.4% copper and 96.7% silver in oxide materialVANCOUVER, BC / ACCESSWIRE / June 9, 2020 / AZARGA METALS CORP. (\"Azarga Metals\" or the \"Company\") (TSXV:AZR) reportsinitial results have been received from the metallurgical test work on samples taken from the recently completed drilling program on the Unkur Copper-Silver Project in Eastern Russia. Previous metallurgical tests from Unkur used only oxidized material taken from a surface outcrop and it was therefore important to have metallurgical tests on more representative material - both oxidized and sulphide material taken from deeper parts of the Unkur mineralization.Michael Hopley, President and CEO said: \"These initial results from the lab are very encouraging; the recoveries of both copper and silver in the sulphide using standard flotation tests are better than one usually expected in preliminary test work, 92% and 88% respectively. The potential of being able to achieve a 30% copper concentrate- a very saleable product - is also very encouraging. Additionally, the positive results of the leach tests on oxide material - 96% copper in an acid leach and over 96% silver in a cyanide leach raise the possibility of being able to use heap leaching as a means of copper and silver recovery for that material.\"The consultant laboratory charged with completing these tests \"The Eastern Mining and Metallurgical Research Institute for Non-Ferrous Metals\" (VNIITsvetMet) based in Kazakhstan reports that the chemical analysis of the drill core samples sent for metallurgical tests are as follows:MetalOxideSulphideCopper %0.560.56Silver g/t30.838.0Gold g/t0.07<0.05The above results are considered positive because they represent close to the anticipated average grade of the Unkur deposit and no elevated values of harmful components, such as arsenic, were identified in mineralized material.Metallurgical Recovery Tests - SulphideUsing standard flotation methods, the mineral recovery tests revealed optimum flotation recovery for copper minerals can be achieved for ±80% -0.071 mm in sulphide materi...