4212 Calcite, First Sovietsky Mine, D’alnegorsk, Russia October 4, 2019 Steve Europe Russia Ambros Kissling
Australasia Australia Victoria ncat VHD4, Calcite, Boral Quarry, Bundoora, Victoria November 17, 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
