Cut-up, in the 1st with a golden background, a pickaxe and a black spade, decussated, crossed by an hexagonal mining lamp colored accordingly, lit in red, linked with a black ten-ring chain, placed in the guise of a pole, coming out of the top; in the 2nd coloured in azure, a naturally rocky mountain, that resembles the Arcuentu mountain, that is sustained by the wavy-profiled green ground, that comes out of the right side and is extended to the separation line; and everything in an azure countryside, with silver-coloured coastal waves, along with a boat, with a natural wooden hull and two silver sails. The external decorations are those typical of a municipality.