head grade definition
head grade means the quantity of valuable mineral or metal contained in each tonne of ore delivered to the concentrator.
head grade means the grade of the ore as delivered to the metallurgical plant;
head grade means the Reported Mineral Processing Facility Feed silver grade for each calendar month as determined by the metallurgical balance for the Mineral Processing Facility (see, “Plant Metallurgical Balance” below).
More Definitions of head grade
head grade means the grade of ore coming into a processing plant;