Comstock Mining reports Dayton tests results exceeded expectations
Comstock Mining reported that recent metallurgical column tests on mineralized material from the Dayton Resource Area have exceeded already high yield expectations and contribute to the advancement of a full feasibility assessment for the mine, updating prior metallurgical test work and the technical resource report published in January 2013. Over the past several months, the technical staff has been conducting column tests of both cyanide and non-cyanide solutions. They established four, full metallurgical column tests, two cyanide and two non-cyanide, running parallel, that supports and advances the feasibility study for establishing proven and probable reserves at the Dayton. The samples were crushed, agglomerated and loaded into four ten-foot columns for leach simulation. The Cyanide columns leached exceptionally high and fast for gold, higher than prior tests and expectations.