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Vista Gold Corp. Provides Update on Metallurgical Testing Program at Mt. Todd Project; Announces Extension of Agreement with Northern Territory
DENVER, June 28, 2017 /CNW/ -- Vista Gold Corp. (the "Company," "Vista Gold," "we" or "our") (NYSE MKT: VGZ) (TSX: VGZ) today provided an update on the status o
About this update from Vista Gold Corp
[{"type":"text","content":"DENVER, June 28, 2017 /CNW/ -- Vista Gold Corp. (the \"Company,\" \"Vista Gold,\" \"we\" or \"our\") (NYSE MKT: VGZ) (TSX: VGZ) today provided an update on the status of its metallurgical testing program on four bulk samples from the Mt Todd gold project. The Company also announced that its agreement with the Northern Territory of Australia (\"NT\") has been extended through December 31, 2023. Metallurgical Testing Program In November 2016, Vista Gold announced the preliminary results of detailed optimization studies for its Mt Todd gold project located in the Northern Territory, Australia. The results indicated potential to further enhance the project's economics through the incorporation of selective screening and sorting in the processing flow sheet to enable finer grinding, enhanced gold recovery, and lower processing costs. (See our press release dated November 28, 2016). Vista Gold's President & CEO, Frederick H. Earnest, commented, \"We have recently commenced metallurgical tests on four, 5-tonne bulk samples from Mt Todd. These tests are designed to confirm that the project can reduce the volume of material to be milled and improve efficiency in the grinding circuit through a combination of producing smaller material in the HPGR crushing circuit and the change to a two-stage grinding circuit. We believe these design changes can be implemented without materially changing the project's capital requirements. Past studies have shown a strong correlation between finer grinding and higher gold recovery, and we believe that we have been conservative in our previous gold recovery estimates at a finer grind. We look forward to the results from this test work and their incorporation into an updated preliminary feasibility study, which will be the first comprehensive update of the project since 2013.\" In February of this year, the Company completed the drilling and logging of approximately 1,700 meters of PQ (3.75\" diameter) core to obtain four, 5-tonne bulk samples of ore representing different parts of the deposit. The samples were shipped to Germany to be crushed and screened (at 5/8\") at Thyssen Krupp Industries' HPGR test facility. This work started last week and two of the four bulk samples have been completed. Based on this work, the Company expects that appro...