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…
Asia Japan 1046 Corundum (Sapphire), Anamushi alluvials, Kashiba City, Nara Prefecture, Japan September 22, 2019
Montana North and Central Americas United States 10020 Corundum, Bozeman Corundum Mine, Gallatin Gateway, Montana November 16, 2018
