1816 Calcite, Chalcopyrite, Henty Gold Mine, Queenstown, Tasmania December 14, 2021 Steve Australasia Australia Tasmania Tiny sharp calcite crystals that look like they may have replaced something else, something vaguely cubic. Width of view 5mm. Stack of 50 images. Click on the image below for a higher resolution version.
Austria Europe 4667 Clinochlore, Titanite, Albite, Calcite?, Bockstein, Gastein valley, Hohe Tauern, Salzburg, Austria October 5, 2019
Australasia Australia South Australia ncat JL3692 Calcite, Iron Monarch, South Australia October 15, 2019
Canada North and Central Americas 8188 Clinochlore, Calcite, Mont Saint-Hilaire, La Vallee-du-Richelieu RCM, Monteregie, Quebec, Canada October 5, 2019
Australasia Australia Victoria 0674 Ferroan Calcite, Gonnardite-Natrolite, Bundoora, Victoria November 15, 2018