5394 Corundum, Mogok, Myanmar (Burma) September 29, 2019 Steve Asia Myanmar (Burma) Sapphire Rough & Cut
Montana North and Central Americas United States 3493 Baddeleyite, Corundum, Biotite, Microcline, Bear Trap Deposit, Bozeman, Gallatin Co., Montana, USA October 3, 2019
Montana North and Central Americas United States 10020 Corundum, Bozeman Corundum Mine, Gallatin Gateway, Montana November 16, 2018
Australasia Australia Queensland 0934 Margarite after Corundum, May Downs, Mt Isa, Queensland September 20, 2019
