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