3105 HEDENBERGITE, Iron Cap Mine, Landsman Camp, Aravaipa, Graham County, Arizona, U.S.A. September 28, 2019 Steve Arizona North & Central Americas United States Source D.Shannon, 1990
Australasia Australia New South Wales 1927 NATROLITE, Ardglen Quarry, Ardglen, N.S.W., Australia September 28, 2019
Africa Democratic Republic of Congo 1634 DIOPTASE, CALCITE, Kimbedi, Mindouli District, Pool Department, Republic of Congo September 28, 2019
California North & Central Americas United States 4010 CRISTOBALITE, Coso Hot Springs Deposit, Coso District, Coso Mtns., Inyo County, California, U.S.A. September 28, 2019