0137 CHALCOCITE, Wheal Buller, Redruth, St. Day District, Cornwall, England, U.K. September 28, 2019 Steve Cornwall England United Kingdom Source R.Tyson, 1984
Nevada North & Central Americas United States 1301 ARTHURITE, Copper Stope, Majuba Hill, Pershing County, Nevada, U.S.A. September 28, 2019
Europe Italy 0078 GANOPHYLLITE, Valgraveglia Mine, Reppia, Graveglia Valley, Genova Province, Liguria, Italy September 28, 2019
California North & Central Americas United States 0631 TILLEYITE, DIOPSIDE, Crestmore Quarry, Crestmore, Riverside County, California, U.S.A. September 28, 2019
Arizona North & Central Americas United States 3923 LANGITE, GYPSUM, San Juan Mine, Warren District, Cochise County, Arizona, U.S.A. September 28, 2019
