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
California North and Central Americas United States 30002 Ruby, Cascade Canyon, San Bernadino Co., California October 5, 2019
