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titanite

[tahyt-n-ahyt] /ˈtaɪt nˌaɪt/
noun, Mineralogy
1.
Origin
1790-1800
1790-1800; < German Titanit. See titanium, -ite1
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for titanite

titanite

/ˈtaɪtəˌnaɪt/
noun
1.
another name for sphene
Word Origin
C19: from German Titanit, so named because it contained titanium
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Article for titanite

sphene

titanium and calcium silicate mineral, CaTiSiO4(O,OH,F), that, in a crystallized or compact form, makes up a minor component of many igneous rocks and gneiss, schist, crystalline limestone, and pegmatite. Occurrences include the Tirol, Austria; Trentino, Italy; Norway; Switzerland; Madagascar; and the United States (New York). Titanite's relatively high dispersion causes it to be a brilliant gem of various colours; it is usually faceted. For detailed physical properties, see silicate mineral (table)

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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8
9
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