Scheelite

Scheelite is the mineral form of calcium tungstate, CaWO4. It is one of two main ores of tungsten. The other is wolframite (ferberite and hübnerite).[1]

Scheelite was historically called "tungsten". Carl Wilhelm Scheele discovered a new mineral acid could be made from this mineral, and named it "tungstic acid". Scheele believed this acid contained a new chemical element, but could not make it.[2] After the element was discovered and named "tungsten", the mineral was renamed after Scheele.[3]

Sources

  1. Thomas R. Carroll, German Schmeda, Nick A Karl, Meredith H. Burger, Keith R Long, Tyler A Reyes (2020). "Tungsten Deposits in the United States". U.S. Geological Survey Geology, Geophysics, and Geochemistry Science Center. doi:10.5066/P9XA8MJ4. Retrieved 2025-06-03.{{cite web}}: CS1 maint: multiple names: authors list (link)
  2. Scheele, Carl Wilhelm (1781) "Tungstens bestånds-delar" (Tungsten's [i.e., Scheelite's] constituents), Kungliga Vetenskaps Academiens Nya Handlingar (Royal Scientific Academy's New Proceedings), 2: 89–95. (in Swedish)
  3. "Scheelite". Mindat.org. Retrieved 2025-06-03.