RE:RE:RE:RE:RE:Tanco Mine History!One Cubic Meter Ore = 540 pounds x 20% cesium grade =108 pounds which is = to 1728 0unces of cesium. The unknown factor at this moment would be the recovery rate so if we use a very modest recovery rate of 65% the mined ounces would be 1123. 1123 ounces x $3500 Canadian = $3,931,200.00. This does not take into account the high grade lithium and tantalum in the same rock. Based on generalized acceptable math.