North and Central Americas United States Utah 3654 Weeksite, Opal, Autunite No 8 Claim, Thomas Mountains, Juab Co, Utah, USA April 27, 2023
Australasia Australia New South Wales 7362 JL3815 Opal, Goethite, Siderite, Manyana Beach, Bendalong, St Vincent Co., New South Wales August 26, 2023
Australasia Australia Queensland 1724 Quartz, Opal(ised Wood), Springsure, Queensland September 22, 2019
