Connecticut North and Central Americas United States 2237 Calcite, Chlorite Group, O & G Southbury Quarry (Silliman Quarry), Southbury, New Haven Co., Connecticut, USA April 4, 2022
Colorado North and Central Americas United States ncat RAM4 CW49 8538, Spessartine, Quartz, Ruby Mountain, Nathrop, Chaffee County, Colorado, USA September 26, 2024
