from The Century Dictionary.
- noun A sulphid of antimony and lead, occurring in oblique monoclinic crystals and in massive forms. It has a dark leadgray color and metallic luster.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Min.) A sulphide of lead and antimony, of a blackish lead-gray color and metallic luster.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mineralogy A monoclinic-prismatic
mineralcontaining antimony, lead, and sulfur.
from Wiktionary, Creative Commons Attribution/Share-Alike License
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