Phenacite

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Phenacite \Phen"a*cite\, n. [Gr. fe`nax, fe`nakos, impostor,
     deceiver.] (Min.)
     A glassy colorless mineral occurring in rhombohedral
     crystals, sometimes used as a gem. It is a silicate of
     glucina, and receives its name from its deceptive similarity
     to quartz.


     [1913 Webster]