30068 Barite, Dolomite, Pyrite, Calcite, Newfoundland Zinc Mine, Daniel’s Harbor, Newfoundland, Canada April 21, 2020 Steve Canada North and Central Americas Ex Barry Johnson Collection. Video best viewed full screen.
Mexico North and Central Americas 5210 Hemimorphite, Calcite, Ojuela Mine, Mapimi, Durango, Mexico April 22, 2020
