What's the difference between marmatite and sphalerite?
Marmatite
Definition:
(n.) A ferruginous variety of shalerite or zinc blende, nearly black in color.
Example Sentences:
Sphalerite
Definition:
(n.) Zinc sulphide; -- called also blende, black-jack, false galena, etc. See Blende (a).
Example Sentences:
(1) The following compounds (at a concentration of 1%) were used as an energy source: pyrite, chalcopyrite, arsenopyrite, antimonite, galenite, sphalerite, and copper-zinc-pyrite ore. A considerable part of cells was found to be attached to the surface of crystals in the course of oxidation of the above sulfide minerals.