View changes made in:
  • May 6, 2021
    • Penroseite
      • Mineral Comment changed from

        Gordon S G (1926) Proceedings of societies: Penroseite and trudellite, two new minerals, American Mineralogist 11, 39-43

        to

        Gordon S G (1925) Penroseite and trudellite: Two new minerals. Proceedings of the Academy of Natural Sciences of Philadelphia 77, 317-324

  • Oct 13, 2017
    • Penroseite
      • IMA Ideal Chemistry changed from "NiSe2" to "(Ni,Co,Cu)Se2"
  • May 8, 2017
    • Penroseite
      • RRUFF Ideal Chemistry changed from "NiSe2" to "Ni2+(Se2)2-"
  • May 27, 2007
    • Penroseite
      • RRUFF Ideal Chemistry changed from "(Ni,Co,Cu)Se2" to "NiSe2"
  • Apr 10, 2007