Referring to irregular shape blocks, we intend Basalt rocks produced with irregular dimensions and geometrical shapes, as extracted from our quarry; at first sight, they have a typical grey-red surface or a natural cracked surface. The dimensions can vary from a minimum of 3 tons each, used for maritime breakwater works or for the creation of sheared artisan products, up until 40 tons each, which is the maximum used in our sawmill. The specific weight of our basalt is 2780kg per cubic metre.