Abstract:
The purpose of this activity was to determine the characteristics of gold contained in iron sand mining tailings based on mineragraphic parameters, gold recovery by amalgamation method, and Hg used and wasted with tailings in the amalgamation process. The results showed the characteristics of gold based on mineragraphic parameters had a bright yellow gold colour, irregular shape, isotropic crystals, low relief, not yet liberated, measuring between 0.04 - 0.25 mm, mostly tied to minerals contains Fe and some binds to non-metallic minerals. The recovery of a pure sample is 90.83%, with the use of mercury 5.6 grams, and the mercury lost with its tailings as much as 6.4 grams. As for the samples that have been recovered, the recovery was 25.5% with the use of 1.4 grams of mercury, and 6.6 grams of mercury lost with tailings.
