A mineral consisting of a hydrated sulphate of magnesium and sodium, occurring as granular aggregates or glassy prisms of a white, pale yellowish, or reddish colour.
Chemical formula: Na₁₂Mg₇(SO₄)₁₃·15H₂O. Crystal system: trigonal.
Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From the name of A. Löwe, Austrian chemist, who analysed the first specimens + -ite, after German Löweit.