Argonaut recovers up to 78% Au at El Castillo

Argonaut Gold  announces initial results regarding possible heap leaching of El Castillo Sulphides. SRK’s November 6, 2011 technical report includes a measured and indicated (“M&I”) Sulphide resource of 1.5 million ounces at an average grade of 0.32 g/t (please see foot note #1) which underlies oxide and transitional gold mineralization at El Castillo.

It is important to note, that the Sulphide material will not be accessed for several years as we continue to mine the oxide and transition ores. However, given the large size of these resources, the company has completed preliminary metallurgical testing.

Read More at Argonaut’s Website