Gitennes announces preliminary metallurgical test results from the Urumalqui gold-silver project, Peru

Metallurgical Testing Notes:

1. Gravity recovery results were: 11 – 21% for Ag and 15 – 35% for Au.
2. The 96 hour cyanidation leach time tests included the addition of 250 g/t lead nitrate.
3. Approximately 120 kilograms of samples from the Project were shipped to G&T in April 2012. The samples were independently selected by MQes from the Company’s 2011 infill drilling program of the Urumalqui Vein. Two sets of samples were shipped. The first consisted of 52 individual bags of coarse crushed material and the second consisted of 28 individual bags of quartered core material. Three composites were generated from the first set of samples, consisting of a Primary, High and Low grade composite. These composites were utilized for the metallurgical test work, which included a comparison of grinding, gravity concentration and flotation and grinding, gravity concentration and cyanidation tests to investigate potential silver and gold recovery from the Project samples. Four composites were generated from the second set of samples, and these composites were utilized for Bond ball mill work index determination tests.
4. Ore hardness was measured using a standard Bond Ball mill work index (“Index”) test procedure. The Index for the four samples ranged from 12.0 to 18.2 kWh/tonne, with the average being approximately 15.1 kWh/tonne. Based on these preliminary tests, the ore hardness can be generally described as moderate to moderately hard.
5. The gravity tailing cyanidation leach tests were conducted over leach times of 24, 48, 72 and 96 hours. While the bulk of the gold solubilized within 24 hours, the silver was relatively slow with leaching appearing to be continuing at 48 hours. Additional gravity tailings leach tests were conducted with the leach time ultimately increased to 96 hours, at which point the cyanide levels were increased to 2,500 ppm and 250 g/t of lead nitrate was added. This resulted in a silver recovery of 97% and a gold recovery of 96%, which for gold was the same recovery achieved at 48 hours but for silver, was a marked improvement from the silver recoveries of 80 – 83% at 48 hours.
6. A sub-sample of the gravity concentrated tailings was submitted for Trace Mineral Search (TMS – via QEMSCAN) to determine silver mineral occurrences and associations. Of the observed silver bearing minerals in both the gravity concentrate and tailings, a significant proportion of the total silver was acanthite/argentite at approximately 96%. These minerals are amenable to both flotation and cyanidation processes.

G&T’s recommendations for further test work to optimize the cyanidation process streams of the flowsheet included, but were not limited to: a.) gravity recoverable gold / silver tests, b.) sodium cyanide sensitivity, c.) effect of lead nitrate addition rates, d.) effect of pH and e.) effect of dissolved oxygen.

Dr. William F. Lindqvist, a director of AndeanGold Ltd., is a Qualified Person and has reviewed and approved the technical information that has been provided to Gitennes.

The technical information in this release that was provided to Gitennes by AndeanGold has been reviewed by J. Blackwell (P.Geo.), a director of Gitennes, and a Qualified Person as defined by National Instrument 43-101.

On behalf of the Board of Directors of
Gitennes Exploration Inc.

Ken Booth
President

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SOURCE: Gitennes Exploration Inc.

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