from The Century Dictionary.
- noun Native antimony trioxid (Sb2O3), occurring in isometric octahedrons, also massive: it is colorless or grayish, of a resinous to subadamantine luster.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mineralogy An isometric-hexoctahedral
mineralcontaining antimonyand oxygen.
from Wiktionary, Creative Commons Attribution/Share-Alike License
Antimony oxides, including senarmontite, cervantite, and others, are formed near the surface, and in some of the deposits of Mexico and Algeria they supply a large part of the values recovered.