Secondary gold structures: evidence of "new" gold's growth inside wastes of sulfide deposits

The author has studied the morphology of native gold from three wastes of pyrite-barite-polymetallic deposits from the different regions of Siberia. The gold particles were studied using scanning electron microscopy. In this research the author has found that these gold growths were newly formed, bearing traces of growth and consolidation. The obtained results have shown that dissolved forms of gold have the high mobility. Moreover, these results illustrate the process of gold migration and precipitation on the different geochemistry barriers inside the gold-bearing wastes. Besides, the author has found that the secondary enrichment horizon was formed at the base of the wastes during more than 80 years.