schreibersite

{{infobox mineral | name = Schreibersite | category = Phosphide mineral Meteorite mineral | boxwidth = | image = Gebel-Kamil-slice-10.7g.jpg | alt = | caption = | formula = | IMAsymbol = Scb | molweight = | strunz = 1.BD.05 | dana = 01.01.21.02 | system = Tetragonal | class = Disphenoidal () H-M symbol: () | symmetry = I | color = Silver-white to tin-white, tarnishes brass-yellow or brown | habit = Rarely in crystals, hoppered, plates, tablets, rods or needles | twinning = | cleavage = {001} perfect, {010} indistinct, {110} indistinct | fracture = | tenacity = Very brittle | mohs = 6.5–7 | luster = Brilliant metallic | streak = Dark gray | diaphaneity = Opaque | gravity = 7.0–7.3 | density = | polish = | opticalprop = Uniaxial | refractive = | birefringence = | pleochroism = | 2V = | dispersion = | extinction = | length fast/slow = | fluorescence= | absorption = | melt = | fusibility = | diagnostic = | solubility = | other = | alteration = | references = }} Schreibersite is generally a rare iron nickel phosphide mineral, , though common in iron-nickel meteorites. It has been found on Disko Island in Greenland and Illinois.

Another name used for the mineral is rhabdite. It forms tetragonal crystals with perfect 001 cleavage. Its color ranges from bronze to brass yellow to silver white. It has a density of 7.5 and a hardness of 6.5 – 7. It is opaque with a metallic luster and a dark gray streak. It was named after the Austrian scientist Carl Franz Anton Ritter von Schreibers (1775–1852), who was one of the first to describe it from iron meteorites.