Stilpnomelane

1 definition found

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

  Stilpnomelane \Stilp*nom"e*lane\, n. [Gr. stilpno`s shining +
     me`las, -anos, black.] (Min.)
     A black or greenish black mineral occurring in foliated
     flates, also in velvety bronze-colored incrustations. It is a
     hydrous silicate of iron and alumina.
     [1913 Webster]