It has been used as a dyestuff since Carl Scheele, after whom scheelite is named, discovered it in 1781. Source: Leiem, CC BY-SA 4.0. Because the amount of tungsten in either ore is so low — a ...

Bloomberg Markets is reporting that BMW, Volkswagen and Ferrari have been using tungsten ore sourced ... question the provenance of the rare ore that is used not only in crankshaft parts ...