Min. Also -it. [f. Frugard in Finland, where found + -ITE. Cf. F. frugardite.] (See quots.)

1

1823.  H. J. Brooke, Introd. Crystallogr., 467. Frugardit, reddish Idocrase containing Magnesia.

2

1884.  Dana, Min., 277. The mineral from Gokum … and that from Frugard, Frugardite, have been denominated magnesian.

3