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A lead-gray mineral, Sb2S3, that is the chief source of antimony.
[French stibine, stibnite (from Latin stibium, antimony; see stibine) + -ite.]
(Minerals) 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
[C19: from obsolete stibine stibnite + -ite1]
a soft, lead-gray mineral, antimony trisulfide, Sb2S3, found in radiating groups of long prismatic crystals and in granular masses: the principal ore of antimony.
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|Noun||1.||stibnite - a soft grey mineral; the chief ore of antimony|
antimony, atomic number 51, Sb - a metallic element having four allotropic forms; used in a wide variety of alloys; found in stibnite
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition