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)
Iowa North and Central Americas United States ncat JP654, Calcite, Oskaloosa, Mahaska Co., Iowa, USA September 23, 2019
Connecticut North and Central Americas United States 2247 Prehnite, Datolite, Clinochlore, Silliman Quarry, Southbury, Connecticut, USA September 22, 2019
Australasia Australia Tasmania 2955 Calcite, Longley Dolerite Quarry, Longley, Tasmania October 3, 2019
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