ncat JP1679, Copper, Prehnite, Quincy Mine, Hancock, Houghton Co., Michigan, USA September 23, 2019 Steve Michigan North and Central Americas United States
England United Kingdom 4411 Prehnite, Moorswood Quarry, Dysgwylfa Hill, Shropshire, England October 5, 2019
Australasia Australia Tasmania 2753 Prehnite, ~1km Deep Drill Core, Variety Bay, Bruny Island, Tasmania October 3, 2019
Scotland United Kingdom 7156 JL2572 Prehnite, Loanhead Quarry, Beith, Strathclyde, Scotland December 1, 2021