Definitions
from The Century Dictionary.
- noun Native bismuth sulphid, a mineral of a lead-gray color and metallic luster occurring in acicular crystals, also massive, with a foliated or fibrous structure. It resembles stibnite, with which it is isomorphous.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mineralogy A soft
bismuth sulfide mineral , an importantore for bismuth.
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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The most common bismuth minerals are bismuthinite and bismite.
Bismuth 2007
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The principal minerals of bismuth are bismuthinite (bismuth sulphide), bismutite (hydrated carbonate), bismite or bismuth ocher (hydrated oxide), and native bismuth.
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In the United States, the sulphide, bismuthinite, is found in the siliceous ores of Goldfield, Nevada (p. 230), and in minor amounts in a great number of the sulphide ores of the Cordilleran region.
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The main sulphide minerals are pyrite, arsenopyrite and pyrrhotite, while accessory minerals include bismuthinite, scheelite and sphalerite.
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The middle horizon, or discovery horizon, contains the majority of the significant gold intervals and has the highest concentrations of arsenopyrite, bismuthinite and scheelite.
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