ncat JP1649 Calcite, Prehnite, Loanhead Quarry, Beith, North Ayrshire, Scotland, UK March 29, 2025 Steve North Ayrshire Scotland United Kingdom Colourless calcite crystals with a ball of prehnite (not in photo) and a pinwheel prehnite (bottom right of photo). Ex Jo Price Collection. Width of view 6mm. Stack of 60 images. Click on the image below for a higher resolution version. Stacked from 60 images. Method=B (R=8,S=4)
Co. Durham England United Kingdom 10022 Calcite, Boltsburn Mine, Rookhope District, Weardale, North Pennines, Co. Durham, England October 5, 2019
Michigan North and Central Americas United States ncat JP804, Copper, Calcite, Copper Falls Mine, Copper Falls, Keweenaw Co., Michigan, USA September 23, 2019
Australasia Australia Tasmania 3161 Calcite, Lonnavale Quarry, Russell River, near Judbury, Tasmania October 3, 2019