
COPPER; Calumet & Hecla Mine, Calumet, Houghton County, Michigan, USA; Jesse La Plante photo

BERYL var. Aquamarine; Brazil; Jesse La Plante photo

COPPER; New Cornelia Mine, Ajo, Pima County, Arizona, USA; Jesse La Plante photo

ERICAITE on ANHYDRITE; Hänigsen, Celle, Lower Saxony, Germany; Jesse La Plante photo

POLYBASITE; Guanajuato, Municipio de Guanajuato, Guanajuato, Mexico

CHALCOCITE; 170 Meter Level, Block 31-50, Mine No. 57, Dzhezkazgan, Karagandy Province, Kazakhstan

AZURITE on MALACHITE; Copper Queen Mine, Bisbee, Cochise County, Arizona, USA

PYRITE; Pogo Mine, Southeast Fairbanks Borough, Alaska, USA

PYRITE on HEMATITE (IRON-cross twin); Batère, Pyrénées-Orientales, Languedoc-Roussillon, France

ACANTHITE on PYRARGYRITE; Chañarcillo, near Copiapó, Copiapó Province, Atacama Region, Chile; Jesse La Plante photo

GAHNITE; Franklin, Sussex County, New Jersey, USA; Jesse La Plante photo

LEGRANDITE; Ojuela Mine, Mapimí, Municipio de Mapimí, Durango, Mexico

SMITHSONITE; Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia; Jesse La Plante photo

CUPRITE on COPPER; Old Dominion Mine, near Globe, Globe-Miami District, Gila County, Arizona, USA; Jesse La Plante photo

CHALCOPYRITE; Cooks Kitchen Mine, Carn Brea, Cornwall, England, United Kingdom; Jesse La Plante photo

GOLD; Ibex Mine/Little Jonny Mine, Leadville, Lake County, Colorado, USA; Jesse La Plante photo

QUARTZ var. Amethyst on DATOLITE; Charcas, Municipio de Charcas, San Luis Potosí, Mexico; Jesse La Plante photo

WULFENITE; Ahumada Mine, Los Lamentos, Municipio de Ahumada, Chihuahua, Mexico; Jesse La Plante photo

COPPER; 5150 Bench, East Pit, Chino Mine, near Bayard, Grant County, New Mexico, USA; Jesse La Plante photo

COPPER on ANALCIME; Phoenix Mine, near Eagle Harbor, Keweenaw County, Michigan, USA; Jesse La Plante photo

CALCITE with COPPER on PREHNITE; Phoenix Mine, near Eagle Harbor, Keweenaw County, Michigan, USA; Jesse La Plante photo

FLUORITE with BARITE on SPHALERITE; Elmwood Mine, near Carthage, Smith County, Tennessee, USA; Jesse La Plante photo

QUARTZ var. Amethyst; Blue Points Mine (formerly Diamond Willow Mine), Pearl, Near Thunder Bay, Ontario, Canada; Jesse La Plante photo