from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A gray to black mineral, Cu2FeSnS4, having a metallic luster. Also called tin pyrites.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a dark-gray lustrous mineral, a mixed sulphide of copper, iron and tin, Cu2FeSnS4, used as an ore of tin
from The Century Dictionary and Cyclopedia
- n. Same as stannine.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a dark grey mineral with a metallic luster that is a source of tin
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.