Stingray Copper Update
Stingray Copper Inc. provided a metallurgical test program update for their El Pilar copper Project in Mexico. The testing has been carried out by Metcon Research Inc. and Noranda Mexico/Falconbridge.
Stingray completed its program of 207 in fill drill holes at the El Pilar resource in June of 2008. Fifty nine of these drill holes were drilled throughout the resource, specifically for metallurgical work. The drill core material from these drill holes (HQ sized) was then shipped from El Pilar to Metcon’s Tucson laboratory under the direction of the Corporation’s geologists.
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After completion of the mini-column leaching, Years 1, 2 and 3 composite samples (Starter Pit) indicate copper extractions of 70% or better in all four pre-cure acid dosage conditions as presented in Table 2. Total sulfuric acid consumption ranges from a low of 9.51 to a high of 14.48 kilograms of acid per kilogram of copper extracted.
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