Brianite is a phosphate mineral with the chemical formula Na₂CaMg(PO₄)₂.[1] It was first identified in an iron meteorite. This mineral is named after Brian Harold Mason, a pioneer in meteoritics. Above is a ball-and-stick model of the inorganic hydrogenphosphate anion (HPO42−). Colour coding: P (orange); O (red); H (white). ... Minerals are natural compounds formed through geological processes. ... Iron meteorites consist overwhelmingly of nickel-iron alloys. ... Minerals are natural compounds formed through geological processes. ... Brian Harold Mason is one of the pioneers in the study of meteorites. ... Meteoritics is a science that deals with meteors and meteorites. ...