5710 Copper in Gypsum, Mission pit, Mission complex, San Xavier, Pima Mining District (Olive Mining District; Mineral Hill Mining District; Twin Buttes Mining District), Sierrita Mountains, Pima Co., Arizona, USA August 20, 2020 Steve Arizona North and Central Americas United States Arborescent copper included in gypsum. Width of view 7.5mm. Stack of 150 images. Ex Charles Willett Collection.
Australasia Australia New South Wales 1381 Copper, Spessartine, Apophyllite, Broken Hill, New South Wales September 22, 2019
Chile South America 6039 Antlerite, Gypsum, Chuquicamata Mine, Calama, Antofagasta Region, Chile October 2, 2019
Australasia Australia Victoria ncat JP306 Phillipsite-Na, Copper, Boral Limited quarry, Bundoora, City of Whittlesea, Victoria September 23, 2019
Australasia Australia Northern Territory 5105 Copper, Peko Mine, Tennant Creek, Northern Territory September 29, 2019