from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A gray to black mineral, Cu2FeSnS4, having a metallic luster.
from The Century Dictionary.
- noun Same as
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun a dark-gray
lustrous mineral, a mixed sulphideof copper, ironand tin, Cu2FeSnS4, used as an oreof tin
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a dark grey mineral with a metallic luster that is a source of tin
from The American Heritage® Dictionary of the English Language, 4th Edition
They may be prepared by the reduction of nitro compounds in alkaline solution (using zinc dust and alkali, or a solution of an alkaline stannite as a reducing agent); by oxidation of hydrazo compounds; or by the coupling of a diazotized amine and any compound of a phenolic or aminic type, provided that there is a free para position in the amine or phenol.