Definition for DI'AL-LAGE

DI'AL-LAGE, n. [Gr. διαλλαγη, 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. – Cleaveland. The metalioidal subspecies is called schillerstein, or shiller spar.

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