Argentite (glossy

silver) - the group of mineral sulfide s. It is a rare mineral, widespread in some parts of the Earth. T he name comes from the chemical composition of the mineral, whose main ingredient is silver (from Lat. Argentum = silver ). Form s crystals to form cubes, ośmiościanów and combinations thereof. Skupieniach occurs in granular, skrytokrystalicznych and dendrycznych. Often creates wrostki in other minerals (such as galena, pyrite). Is stable below 179 ° C passes into monoclinic modification (akantyt).