As historical mine wastes have accumulated in storage facilities, the interest in studying the reuse of gold (Au) mining tailings has increased, yielding environmental and economic benefits. In the present study, a detailed evaluation of the Cuiaba tailing dam in Sabará, Minas Gerais (Brazil) was performed, answering a new legal framework and agreeing with a circular economy philosophy. The mineralogical analyses revealed that most associations include silicate minerals. In accordance, the Au recovery results reached values below 50%. Because of this, other potential reuse experiments, in addition to Au reprocessing, were conducted. The first product was produced from a particle size partition above 20 µm. Due to the silica concentration, this product became a fine aggregate for the construction sector. Another alternative is generating a pozzolanic product obtained by calcination, which has an application in the cement industry. ; AngloGold Ashanti Brasil