NOUN (1)

1. a rare light blue or green mineral; consists of aluminum and magnesium silicate and occurs as small grains in some metamorphic rocks;


ADJECTIVE (1)

1. made of or resembling sapphire;

The Collaborative International Dictionary of English v.0.48:

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]

WordNet (r) 3.0 (2006):

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