Co. Durham England United Kingdom 1916 Calcite, Sphalerite, Frazers Grove Mine, Rookhope, Weardale, England September 22, 2019
California North and Central Americas United States ncat JP1024, Cinnabar, Calcite, Great Eastern and Mount Jackson Mine (Sonoma Mine; Sonoma Quicksilver Mines; Guerneville Mine; Great Eastern Mine; Mount Jackson Mine), Guerneville, Guerneville District, Coast Range, Sonoma Co., California, USA September 23, 2019
Australasia Australia South Australia 7228 JL1036 Siderite, Calcite, Barite, Quartz, Martins Well, South Flinders Ranges, Flinders Ranges, South Australia September 23, 2019
