5252 Corundum, Mogok, Myanmar (Burma) September 29, 2019 Steve Asia Myanmar (Burma) Ruby Rough & Cut. Fluoresces red.
Montana North and Central Americas United States 10020 Corundum, Bozeman Corundum Mine, Gallatin Gateway, Montana November 16, 2018
Montana North and Central Americas United States 3493 Baddeleyite, Corundum, Biotite, Microcline, Bear Trap Deposit, Bozeman, Gallatin Co., Montana, USA October 3, 2019
Europe Russia 0399 Corundum, Ruby, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast’, Northern Region, Russia September 19, 2019
