Chlorite

[klɒ:rait]

Definition

(noun.) a generally green or black mineral; it occurs as a constituent of many rocks typically in the form of a flat crystal.

Checked by Benita--From WordNet

Definition

(n.) The name of a group of minerals, usually of a green color and micaceous to granular in structure. They are hydrous silicates of alumina, iron, and magnesia.

(n.) Any salt of chlorous acid; as, chlorite of sodium.

Edited by Denny