Tungsten | Uses, Properties, & Facts | Britannica
It is used in the form of tungsten carbide for very hard and tough dies, tools, gauges, ... (14.31 percent), tungsten-184 (30.64 percent), and tungsten-186 (28.43 percent). Tungsten crystals are isometric and, by X-ray analysis, are seen to be body-centred cubic. Compounds. Chemically, tungsten is relatively inert.