Ilvaite \Il"va*ite\, n. [From L. Ilva, the island now called
Elba.] (Min.)
A silicate of iron and lime occurring in black prismatic
crystals and columnar masses.
[1913 Webster]
Yenite \Ye"nite\, n. [After Jena, in Germany.] (Min.)
A silicate of iron and lime occurring in black prismatic
crystals; -- also called ilvaite. [Spelt also jenite.]
[1913 Webster]
