Tags: Chemical Substance, Mineral.
Allargentum is a mineral from the class of antimonides superclass of sulfides and sulfosalts (sometimes ascribed to the natural elements and alloys class) with formula written as Ag1-xSbx where x = 0.09–0.16. This moderately rare mineral is found in silver ores and is therefore named from the Greek άλλος (allos another) and the Latin ‘argentum’ (silver). Its Vickers hardness is 172–203.
