1617 Prehnite, Silliman Quarry, Southbury, Connecticut, USA September 22, 2019 Steve Connecticut North and Central Americas United States
Europe France ncat JP2271 Prehnite, La Combe de la Selle, St Christophe-en-Oisans, Bourg d’Oisans, Isere, Auvergne-Rhone-Alpes, France October 11, 2019
Canada North and Central Americas 6040 Diopside, Prehnite, Jeffrey mine, Asbestos, Quebec, Canada October 2, 2019
Cornwall England United Kingdom 4886 Prehnite, Dean Quarry, St Keverne, Lizard Peninsula, Cornwall, England, UK October 5, 2019
Michigan North and Central Americas United States ncat JP1679, Copper, Prehnite, Quincy Mine, Hancock, Houghton Co., Michigan, USA September 23, 2019
