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
England United Kingdom 4411 Prehnite, Moorswood Quarry, Dysgwylfa Hill, Shropshire, England October 5, 2019
New Jersey North and Central Americas United States 0583 Prehnite, Upper New Street Quarry, Paterson, New Jersey, USA September 20, 2019
Australasia Australia Queensland 4542 Chalcocite, Prehnite, Malachite, Bowen River, Strathmore, Queensland March 12, 2022
