6040 Diopside, Prehnite, Jeffrey mine, Asbestos, Quebec, Canada October 2, 2019 Steve Canada North and Central Americas Good prismatic crystals of colourless prehnite with green diopside. Ex Brian Shelton Collection.
Connecticut North and Central Americas United States 2247 Prehnite, Datolite, Clinochlore, Silliman Quarry, Southbury, Connecticut, USA September 22, 2019
England United Kingdom 4411 Prehnite, Moorswood Quarry, Dysgwylfa Hill, Shropshire, England October 5, 2019
North Ayrshire Scotland United Kingdom ncat JP1649 Calcite, Prehnite, Loanhead Quarry, Beith, North Ayrshire, Scotland, UK March 29, 2025
