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Atlanta Gold Inc
Symbol ATG
Shares Issued 253,441,565
Close 2013-06-25 C$ 0.025
Market Cap C$ 6,336,039
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Atlanta Gold produces 18.89 oz/t Au concentrate

2013-06-26 13:49 ET - News Release

Mr. Ernest Simmons reports

ATLANTA GOLD ANNOUNCES POSITIVE RESULTS FROM PRELIMINARY METALLURGICAL TESTWORK

Atlanta Gold Inc. has released positive metallurgical test results from 11 tons of bulk stock material previously washed by a sluice/jig plant located at Knife River Corp.'s facility in Boise, Idaho (see news release dated Sept. 26, 2012), with the objective of obtaining 25 pounds of concentrate for refining evaluations and estimating costs.

The initial bulk sample of 107 tons processed by Knife River in August, 2012, recovered 20 per cent of the gold values from an average feed of 0.051 ounce per ton Au. Reprocessing in June, 2013, of 11 tons of the materials remaining from the initial bulk sample and grinding to minus 20 mesh liberated additional gold and heavy metals produced a concentrate of 18.896 ounces per ton Au which was verified by an independent mine laboratory. Of the total gold, 66.6 per cent was recovered from standard cyanidation. Using grind, roast and cyanidation, overall recovery rates increased to 88.9 per cent.

Ernest Simmons, president and chief executive officer, commented: "Additional lab work will be needed to optimize grinding, roasting and cyanidation at a selected toll recovery facility located out of state. We are very pleased with this initial result which demonstrates that with some fine-tuning on the gravity test we will be able to maximize the recovery of the metals from on-site concentrates that are of a quality that justify toll processing and refining costs."

  
Sample ID                    Gold head grade      Free gold      Gold to carbon  Gold tail grade   Recovery
                                    (opt Au)        (mg Au)            (opt Au)          (opt Au)         %

Cyanidation only                      18.896         55.745               7.200             8.173      66.6
Grind, roast and cyanidation          18.896         31.043              13.506             3.043      88.9

The objective for final recovery testing is to determine if the on-site gravity recovery system would produce a concentrate using only water as a medium. This testing supports the hypothesis that gravity separation is a viable option.

Bulk stock material was fed by hopper conveyor feeder to a ball mill and the outflow slurry delivered to a custom sluicing system with an eight-foot-long spreading flume and into a 30-inch-wide-by-four-foot-long sluice box containing low profile riffles.

The sluice concentrates were collected after each 2,000-pound run. The concentrates were taken back to the shop, screened through a 20-mesh screen and the minus 20 mesh was upgraded/cleaned on a four-by-eight shaker table, producing 25 pounds of heavy concentrate obtained from processing 11 tons of the feed material.

The plus-20-mesh shaker table tails, minus-20-mesh sluice concentrate, head feed samples, sluice tailings and overflow slimes were saved, dried, sealed and sent for assay.

Notable amounts of fine, free gold was visible in the concentrate from approximately to minus 20 mesh down to the finest gold the human eye can detect.

Qualified person

Eric Berentsen, a director of Atlanta Gold and a qualified person as defined by NI 43-101, has reviewed and verified the technical information contained in this news release. Mr. Berentsen is a registered member of the Society for Mining, Metallurgy and Exploration Inc.

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