Tags: Chemical Substance, Mineral.
Hedenbergite CaFeSi2O6 is the iron rich end member of the pyroxene group having a monoclinic crystal system. The mineral is extremely rarely found as a pure substance and usually has to be synthesized in a lab. It was named in 1819 after M.A. Ludwig Hedenberg who was the first to define hedenbergite as a mineral. Contact metamorphic rocks high in iron are the primary geologic setting for hedenbergite.