Definition of stibnite
: a mineral that consists of the trisulfide of antimony and occurs in orthorhombic lead-gray crystals of metallic luster or in massive form
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Origin and Etymology of stibnite
alteration of obsolete English stibine stibnite, from French, from Latin stibium antimony, from Greek stibi, from Egypt sṭm
First Known Use: circa 1854
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Britannica.com: Encyclopedia article about stibnite
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