Epidote \Ep"i*dote\, n. [Gr. ? to give besides; ? over + ? to give: cf. F. ['e]pidote. So named from the enlargement of the base of the primary, in some of the secondary forms.]

(Min.) A mineral, commonly of a yellowish green (pistachio) color, occurring granular, massive, columnar, and in monoclinic crystals. It is a silicate of alumina, lime, and oxide of iron, or manganese. [1913 Webster]

Note: The Epidote group includes ordinary epidote, zoisite or lime epidote, piedmontite or manganese epidote, allanite or cerium epidote. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

Epidote \Ep"i*dote\, n. [Gr. ? to give besides; ? over + ? to give: cf. F. ['e]pidote. So named from the enlargement of the base of the primary, in some of the secondary forms.]

(Min.) A mineral, commonly of a yellowish green (pistachio) color, occurring granular, massive, columnar, and in monoclinic crystals. It is a silicate of alumina, lime, and oxide of iron, or manganese.

Note: The Epidote group includes ordinary epidote, zoisite or lime epidote, piedmontite or manganese epidote, allanite or serium epidote.

Source: Webster's Revised Unabridged Dictionary (1913)