Brianite is a phosphate mineral with the chemical formula Na2CaMg(PO4)2.Brianite data on Webmin It was first identified in an iron meteorite.Brianite mineral information and data on Mindat This mineral is named after Brian Harold Mason (1917–2009), a pioneer in meteoritics.

It was first reported from the Dayton meteorite in Montgomery County, Ohio in 1966. It occurs in phosphate nodules within the meteorite. Associated minerals include: panethite, whitlockite, albite, enstatite, schreibersite, kamacite, taenite, graphite, sphalerite and troilite.

See also Glossary of meteoritics

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