sapphirine adj 1: made of or resembling sapphire n 1: a rare light blue or green mineral; consists of aluminum and magnesium silicate and occurs as small grains in some metamorphic rocks
Sapphirine \Sap"phir*ine\, n. Resembling sapphire; made of sapphire; having the color, or any quality of sapphire. "Sapphirine degree of hardness." --Boyle. [1913 Webster]