Tungstic ocher

Tungstic ocher
Tungsten Tung"sten, n. [Sw. tungsten (cf. Dan. tungsteen, G. tungstein); tung heavy (akin to Dan. tung, Icel. [thorn]ungr) + sten stone. See {Stone}.] 1. (Chem.) A rare element of the chromium group found in certain minerals, as wolfram and scheelite, and isolated as a heavy steel-gray metal which is very hard and infusible. It has both acid and basic properties. When alloyed in small quantities with steel, it greatly increases its hardness. Symbol W (Wolframium). Atomic weight, 183.6. Specific gravity, 18. [1913 Webster]

2. (Min.) Scheelite, or calcium tungstate. [Obs.] [1913 Webster]

{Tungsten ocher}, or {Tungstic ocher} (Min.), tungstate. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • tungstic ocher — noun : tungstite …   Useful english dictionary

  • Ocher — O cher, Ochre O chre, n. [F. ocre, L. ochra, fr. Gr. ?, from (?) pale, pale yellow.] 1. (Min.) (a) A impure earthy ore of iron or a ferruginous clay, usually red (hematite) or yellow (limonite), used as a pigment in making paints, etc. The name… …   The Collaborative International Dictionary of English

  • Tungsten ocher — Tungsten Tung sten, n. [Sw. tungsten (cf. Dan. tungsteen, G. tungstein); tung heavy (akin to Dan. tung, Icel. [thorn]ungr) + sten stone. See {Stone}.] 1. (Chem.) A rare element of the chromium group found in certain minerals, as wolfram and… …   The Collaborative International Dictionary of English

  • Ochre — Ocher O cher, Ochre O chre, n. [F. ocre, L. ochra, fr. Gr. ?, from (?) pale, pale yellow.] 1. (Min.) (a) A impure earthy ore of iron or a ferruginous clay, usually red (hematite) or yellow (limonite), used as a pigment in making paints, etc. The… …   The Collaborative International Dictionary of English

  • Tungsten — Tung sten, n. [Sw. tungsten (cf. Dan. tungsteen, G. tungstein); tung heavy (akin to Dan. tung, Icel. [thorn]ungr) + sten stone. See {Stone}.] 1. (Chem.) A rare element of the chromium group found in certain minerals, as wolfram and scheelite, and …   The Collaborative International Dictionary of English

  • tungstite — [tuŋ′stīt΄] n. a very soft, yellowish, orthorhombic mineral, WO3·H2O, usually found, as a powdery coating, with wolframite: also called tungstic ocher …   English World dictionary

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