Min. Also called ægirine. [See quot.] An ore belonging to the Amphibole group of Bisilicates.
1837–80. Dana, Mineral., 223–4. Ægirite … monoclinic, and isomorphous with pyroxene…. Named after Ægir, the Scandinavian god of the sea. Ibid. Ægirine holds the same relation in composition to pyroxene that arfvedsonite does to hornblende.
