The primary criteria for selection of the most appropriate and cost-effective Gold Assay method include:
Type of sample
A diverse range of techniques are available for gold explorers and miners including; lead collection fire assay gold analysis, screen fire assay or accelerated cyanide leach for coarse gold deposits, target generation analysis by aqua regia or BLEG, partial digest geochemistry, multi-element and pathfinders, lithogeochemical packages, bullion assays and mine-site laboratories.
Fire Assay or Lead Collection Fire Assay remains the method of choice for quantitative gold determination. The fore assay flux mixture has been carefully formulated to optimize precious metal recovery in diverse mineralogical matrices.
Aqua Regia will digest many minerals, however, silicates and refractory minerals will remain largely undigested. Aqua regia is useful for grassroots exploration and as a screening tool. It is a cost effective way to analyze for gold and other elements.
Curated Platinum Storage mineral assay personnel are experts with years of mining and mineral industry experience, please contact us for more information.