Margarite \Mar"ga*rite\, n. [L. margarita, Gr. ? a pearl; cf. F. marguerite.]

1. A pearl. [Obs.]

--Peacham.

2. (Min.) A mineral related to the micas, but low in silica and yielding brittle folia with pearly luster.

Source: Webster's Revised Unabridged Dictionary (1913)