Melaconite

1 definition found

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

  Melaconite \Me*lac"o*nite\, n. [Gr. me`las black + ? dust.]
     (Min.)
     An earthy black oxide of copper, arising from the
     decomposition of other ores.
     [1913 Webster] Melada