3921 WOODWARDITE, South Caradon Mine, Caradon Hill, St Cleer, Liskeard District, Cornwall, England, U.K. September 28, 2019 Steve Cornwall England United Kingdom Source M.Southwood, 2015
Arizona North & Central Americas United States 2536 FREIBERGITE, QUARTZ, Silver King Mine, Comstock Wash, Pinal County, Arizona, U.S.A. September 28, 2019
California North & Central Americas United States 1846 HOWIEITE, Longvale Quarry, Mendocino County, California, U.S.A. September 28, 2019
Colorado North & Central Americas United States 0792 HYDROZINCITE, Leadville, Lake County, Colorado, U.S.A. September 28, 2019
Australasia Australia Queensland 2183 OPAL-AG, Yowah Opal Field, Poroo Shire, Queensland, Australia September 28, 2019
