Origin: Mogila mine, Madan, Bulgaria
Sample size: 26 x 15 x 20 mm
Chalcopyrite on
galena
Origin: 67w9 bottom, Brushy Creek mine, Reynolds Co., Missouri, U.S.A.
Sample size: 25 x 23 x 18 mm
Origin: Mogila mine, Madan, Bulgaria
Sample size: 7 x 9 x 3.5 cm, brassy chalcopyrite crystals to 9 mm (top), 5.5 x
6 x 3.5 cm (bottom)
Chalcopyrite on
pyrite
Origin: Brushy Creek mine, Viburnum Trend, Reynolds Co., Missouri, U.S.A.
Sample size: 6.5 x 5 x 3 cm
Chalcopyrite with
calcite
Origin: Naica, Mun. de Saucillo, Chihuahua, Mexico
Sample size: 9.5 x 7.3 x 3.2 cm
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