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diallageDIALLAGE, n. [Gr., difference, alluding to the difference of luster between its natural joints.] A mineral, the smaragdite of Saussure, of a lamellar or foliated structure. Its subspecies are green diallage, metalloidal diallage and bronzite. The metalloidal subspecies is called schillersteing, or shiller spar. |