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stibnite

[stib-nahyt] /ˈstɪb naɪt/
noun
1.
a soft mineral, antimony sulfide, Sb 2 S 3 , lead-gray in color with a metallic luster, occurring in crystals, often acicular, or in bladed masses: the most important ore of antimony.
Origin
1850-1855
1850-55; stib(i)ne (in obsolete sense “stibnite”) + -ite1
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for stibnite
  • stibnite is the predominant ore mineral of antimony.
  • In areas where stibnite has been exposed to the atmosphere, it is converted to an oxide.
  • Most stibnite of the hypogene deposits is oxidized to one or more of the antimony oxides.
  • It is sometimes found natively, but more frequently it is found as the sulfide stibnite.
  • The ore minerals are stibnite and antimony oxides that occur as impregnations, nests and stringers.
British Dictionary definitions for stibnite

stibnite

/ˈstɪbnaɪt/
noun
1.
a soft greyish mineral consisting of antimony sulphide in orthorhombic crystalline form. It occurs in quartz veins and is the chief ore of antimony. Formula: Sb2S3
Word Origin
C19: from obsolete stibine stibnite + -ite1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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