3932 Calcite, Level 16, Potosi Mine, Santa Eulalia, Chihuahua, Mexico October 3, 2019 Steve Mexico North and Central Americas Rob Sielecki 6/2004
Australasia Australia Victoria 40008 RH Mn-Oxide (Dendrites), Calcite, Colac Quarry, Ondit, Colac Otway Shire, Victoria January 15, 2021
North and Central Americas United States Virginia 1311 Calcite, Quartz, Haymarket Quarry, Haymarket, Virginia, USA September 22, 2019
Australasia Australia New South Wales 0199 Stibnite, Calcite, Freehold Antimony Mine, Hillgrove, New South Wales September 18, 2019
Mexico North and Central Americas 5210 Hemimorphite, Calcite, Ojuela Mine, Mapimi, Durango, Mexico April 22, 2020
