ncat JP804, Copper, Calcite, Copper Falls Mine, Copper Falls, Keweenaw Co., Michigan, USA September 23, 2019 Steve Michigan North and Central Americas United States
North and Central Americas Pennsylvania United States 4940 Goethite, Calcite, Fluorite, Burkholder Quarry, Martindale, Earl Township, Lancaster Co., Pennsylvania, USA October 5, 2019
Connecticut North and Central Americas United States 1627 Datolite, Calcite, Roncari Quarry, East Glastonbury, Connecticut, USA September 22, 2019
