0775 Calcite, 6 Level, CSA Mine, Cobar, New South Wales September 20, 2019 Steve Australasia Australia New South Wales Small cluster of calcite crystals, no matrix. Width of view 3.5mm. Stack of 30 images. Click on the image below for a higher resolution version.
Australasia Australia South Australia ncat JP1010 Malachite, Calcite, Marree, Northeast, South Australia September 23, 2019
Derbyshire England United Kingdom 5425 Calcite, Armstrong Quarry, Shireoaks, Derbyshire, England October 2, 2019
Arizona North and Central Americas United States 0054 Fluorite, Calcite, Buckskin Mountains, Arizona, USA March 21, 2018
Australasia Australia Tasmania 1734 Calcite, Stilbite, Proctors Road, Sandy Bay, Tasmania September 22, 2019