Min. Also -it. [f. Frugard in Finland, where found + -ITE. Cf. F. frugardite.] (See quots.)
1823. H. J. Brooke, Introd. Crystallogr., 467. Frugardit, reddish Idocrase containing Magnesia.
1884. Dana, Min., 277. The mineral from Gokum and that from Frugard, Frugardite, have been denominated magnesian.