tungsteniten.
/ˈtʌŋstənʌɪt/ Mineralogy.† 1. = tungsten n. 2. Obsolete.
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the world > matter > chemistry > elements and compounds > metals > specific elements > tungsten > [noun]
tungsten1796
tungstenite1796
wolfram1845
1796 R. Kirwan Elements Mineral. (ed. 2) II. 308 Tungstenite... This substance is capable of existing in three states. That of a Regulus, which I call Tungstenite.
1796 R. Kirwan Elements Mineral. (ed. 2) II. 308 Tungstenite... Hitherto it has been produced only in very minute Globules, being more difficulty reducible to a Metallic State than Manganese or Uranite.
2. = tungsten n. 1.
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the world > the earth > minerals > types of mineral > tungstates and molybdates > [noun] > scheelite group
tungsten1770
powellite1891
tungstenite1894
1894 H. F. Morley & M. M. P. Muir Watts' Dict. Chem. (rev. ed.) IV. 797 Tungstenite, or scheelite (tungstate of Ca[lcium])..occur in various localities.
3. A tungsten sulphide, probably WS2, that occurs as both hexagonal and rhombohedral polytypes in dark grey scaly aggregates that mark the fingers.
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the world > the earth > minerals > types of mineral > sulphides and related minerals > [noun] > molybdenite group > tungstenite
tungstenite1917
1917 Wells & Butler in Jrnl. Washington Acad. Sci. VII. 596 It is..a pleasure to announce the discovery of tungsten sulphide..from..Utah... On account of the apparent resemblance to molybdenite in formula and some of its properties the new mineral has been named tungstenite.
1970 Canad. Mineralogist X. 731 It is virtually impossible to distinguish the x-ray powder pattern of a given polytype of molybdenite from the same polytype of tungstenite... Consequently it is quite possible that tungstenite is more widespread than the literature indicates.
This entry has not yet been fully updated (first published 1915; most recently modified version published online June 2018).
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n.1796