ncat JP2475, Calcite, Pyrite, Oskaloosa, Mahaska Co., Iowa, USA September 23, 2019 Steve Iowa North and Central Americas United States
Australasia Australia New South Wales 0775 Calcite, 6 Level, CSA Mine, Cobar, New South Wales September 20, 2019
Co. Durham England United Kingdom 6085 Barite, Calcite, Fluorite, Dam Rigg Level, Northside Mines, Whaw, Arkengarthdale, North Pennines, North Yorkshire, England October 2, 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
