20051 Dioptase, Calcite, Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia April 25, 2020 Steve Africa Namibia Sharp green dioptase crystals on calcite. Ex Roger Colling Collection. Video best viewed full screen.
Australasia Australia Tasmania 2955 Calcite, Longley Dolerite Quarry, Longley, Tasmania October 3, 2019
Australasia Australia Victoria 7400 JL1740 Chabazite, Calcite, Point Sambell, Phillip Island, Bass Coast Shire, Victoria December 29, 2020
Brazil South America 1933 Pyrrhotite, Cubanite, Calcite, Morrho Velho Gold Mine, Nova Lima, Minas Gerais, Brazil September 22, 2019
Indiana North and Central Americas United States 4076 Smythite, State Route 37 road cut (6), Bloomington, Monroe Co., Indiana, USA March 23, 2018