5662 Corundum var Sapphire, Luc Yen, Yen Bai Province, Vietnam October 20, 2019 Steve Asia Vietnam Blue and green sapphires, some with good crystal form. Click for full sized image…
Montana North and Central Americas United States 10020 Corundum, Bozeman Corundum Mine, Gallatin Gateway, Montana November 16, 2018
Africa Madagascar ncat JP3061 Corundum var Ruby, Ampanihy District, Atsimo-Andrefana Region, Tulear Province (Toliara), Madagascar October 8, 2019
Australasia Australia Queensland 0934 Margarite after Corundum, May Downs, Mt Isa, Queensland September 20, 2019
