Don’t forget density QAQC: In some orebodies the bulk density or specific gravity is not a major contributor to the outcome, but in the majority of deposits it is as important to get density right as it is to ensure correct assays. This means having a density standard (an aluminium cylinder is preferred) and thinking about doing density duplicate measurements. The concept of a blank is not so applicable. Of course correct bulk density determination is critical for an orebody with oxide and transitional weathered material.
This week’s 30 Seconds of Info is from Ian Glacken – Director of Geology.