4375 Prehnite, Gunnedah, New South Wales April 22, 2020 Steve Australasia Australia New South Wales K & M Brown Collection Video best viewed full screen.
England United Kingdom 4411 Prehnite, Moorswood Quarry, Dysgwylfa Hill, Shropshire, England October 5, 2019
Connecticut North and Central Americas United States 1617 Prehnite, Silliman Quarry, Southbury, Connecticut, USA September 22, 2019
North and Central Americas United States Virginia 10006 Hydroxyapophyllite-(K), Prehnite, Stilbite, Thaumasite, Bull Run Quarry, Conklin, Loudoun Co., Virginia, USA October 5, 2019
