4946 Fluorite, Barite, Quartz, Smithsonite, Fall Hill Quarry, Milltown, Ashover, Derbyshire, England, UK December 3, 2021 Steve Derbyshire England United Kingdom Tiny smithsonite crystals on interpenetrant fluorite and bladed barite crystals, on quartz. Acquired from Philip Grounds, Bay Minerals, in 2012. Width of view 5mm. Stack of 70 images. Click on the image below for a higher resolution version.
Co. Durham England United Kingdom 1245 Fluorite, Leonards Hush, Pike Law Mines, Newbiggin, County Durham, England, UK July 20, 2020
Czech Republic Europe 3500 Heyrovskyite, Cosalite, Pyrite, Sphalerite, Quartz, Hurky, Czech Republic October 3, 2019