Quartz, Chalcopyrite & Calcite
Locality: Ground Hog Mine, Vanadium, Central Mining District, Grant Co., New Mexico
Hematite and Limonite after Marcasite and Pyrite $15 6.8 x 1.6 x 2.3 cm
Locality: White Desert, Egypt
Pyrite on Matrix
Locality: Victoria Mine, La Rioja, Spain
Arsenopyrite
Locality: Sigma 2 Mine, Louvicourt, Quebec
Pyrite psm Pyrrhotite & Siderite
Locality: Tur? Mine, Tur?, Negre?ti-Oa?, Oa? Mountains, Satu Mare, Satu Mare, Romania
Sphalerite, Pyrtite, Quartz & Chaclcopyrite
Locality: Ground Hog Mine, Vanadium, Central Mining District, Grant Co., New Mexico
Chalcopyrite, Pyrite & Magnetite
Locality: French Creek Mines, St. Peters, PA
Pyrite
Locality: Ampliación a Victoria Mine, Navajún, La Rioja, Spain
Pyrite & Calcite
Locality: Trep?a Stari Trg Mine, Trep?a complex, Trep?a valley, Mitrovica, Mitrovica District, Kosovo
Calcite, Sphalerite & Chalcopyrite
Locality: Naica Mine, Naica, Saucillo Municipality, Chihuahua, Mexico
