Tungsten

From BiblePortal Wikipedia

Tungsten [1]

(1):

(n.) Scheelite, or calcium tungstate.

(2):

(n.) 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.

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