2 (Min.)
Defn: Scheelite, or calcium tungstate. [Obs.] Tungsten ocher, or
Tungstic ocher (Min.), tungstate.
TUNGSTENIC
Tung*sten"ic, a.
Defn: Of or pertaining to tungsten; containing tungsten; as, tungstenic ores. [R.]
TUNGSTEN LAMP
Tung"sten lamp.
Defn: An electric glow lamp having filaments of metallic tungsten. Such lamps, owing to the refractory nature of the metal, may be maintained at a very high temperature and require an expenditure of only about 1.25 watts per candle power.
TUNGSTEN STEEL
Tungsten steel. (Metal.)
Defn: A steel containing a small amount of tungsten, noted for tenacity and hardness, even under a considerable degree of heat. Magnets made of it are said to be highly permanent. It often contains manganese.
TUNGSTIC
Tung"stic, a. (Chem.)
Defn: Of or pertaining to tungsten; derived from, or resembling, tungsten; wolframic; as, tungstic oxide. Tungstic acid, an acid of tungsten, H2WO4, analogous to sulphuric and chromic acids.