RE:RE:2 billion lbs of copper in Nuggett tailings Pond4.1 million tons of that 6.7 m tons was mined between 1972-82 at an average grade of 2.17% copper and above average gold grade plus silver and zinc.
During the first 5 years of mining by Rambker...2013 onwards . rambler high graded with copper grades averaging over 2,5 % with gold grades about 1.5 grams per ton .
Recoveries were lower in the earlier period, so my 10% tailings waste takes the entire period into consideration .
Thank you for asking tho, as my professional background required that I speed read and retain factual essence by memory ...and sometimes that is not infallible ..