4144 WILLEMITE, Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia September 28, 2019 Steve Africa Namibia Source C.Kovac, 2005
Europe France 5333 CHALCOSTIBITE, SIDERITE, Saint- Pons, Ubaye Valley, Alps-de-Haute Province, Province-Alpes-Cote d Azur, France September 28, 2019
Australasia Australia New South Wales 4003 OPAL-AG, White Cliffs Opal Field, White Cliffs, N.S.W., Australia September 28, 2019
North & Central Americas South Dakota United States 4816 SARCOPSIDE, Bull Moose Mine, Custer, Custer County, South Dakota, U.S.A. September 28, 2019
Kansas North & Central Americas United States 3745 DOLOMITE, Baxter Springs, Cherokee County, Kansas, U.S.A. September 28, 2019