Quantitative D-Sims Analysis of Sub-Microscopic Gold in Sulphide Minerals - Surface Science Western

Request for analysis: A refractory feed ore sample containing pyrite and arsenopyrite mineral phases was to be analysed for the presence of “invisible” sub-microscopic gold. Objectives: Methodology: Polished sections from specific size fractions of the ore sample were prepared and grains representing both mineral phases were selected and marked for analysis. These mineral particles were analysed using the Cameca IMS-3f SIMS instrument and concentration depth profiles for Au, As, S and Fe were...