Assertion: tungsten | /r/HasProperty | metallic chemical element
Facets:
Source sentences:
text: W, atomic weight 184o (0=16)], a metallic chemical element found in the minerals wolfram, an iron and manganese tungstate, scheelite, a calcium tungstate, stolzite, a lead tungstate, and in some rarer minerals.
text: Tungsten is a metallic chemical element classified among the transition metals of the periodic table of elements.