8071 M3956 Neptunite, Mont Saint-Hilaire, La Vallee-du-Richelieu RCM, Monteregie, Quebec, Canada October 5, 2019 Steve Canada North and Central Americas ex Bernie and Margaret Day Collection Click for full sized image…
California North and Central Americas United States 0582 Neptunite, Dallas gem mine, San Benito Co., California, USA April 27, 2023
California North and Central Americas United States 30037 Djurleite, Neptunite, California State Gem Mine, New Idria District, San Benito Co., California, USA October 5, 2019
Africa Namibia ncat JP1412 Neptunite, Makatite, Microcline, Aris Quarries (Ariskop Quarry; Railway Quarry), Aris, Windhoek District, Khomas Region, Namibia October 8, 2019
