1617 Prehnite, Silliman Quarry, Southbury, Connecticut, USA September 22, 2019 Steve Connecticut North and Central Americas United States
Michigan North and Central Americas United States ncat JP1679, Copper, Prehnite, Quincy Mine, Hancock, Houghton Co., Michigan, USA September 23, 2019
North Ayrshire Scotland United Kingdom ncat JP1649 Calcite, Prehnite, Loanhead Quarry, Beith, North Ayrshire, Scotland, UK March 29, 2025
Scotland United Kingdom 7156 JL2572 Prehnite, Loanhead Quarry, Beith, Strathclyde, Scotland December 1, 2021
North Ayrshire Scotland United Kingdom 3812 Hematite, Prehnite, Albite, Loanhead Quarry, Beith, North Ayrshire, Scotland, UK March 30, 2025
