David K. Joyce

Sperrylite, in chalcopyrite

4.3x2.9x2.5 cm
Broken Hammer Mine
Wisner Township (near Sudbury)
Ontario, Canada

Sperrylite, in chalcopyriteSperrylite, in chalcopyriteSperrylite, in chalcopyrite

Item number: 23002

A fairly sharp, cube octahedron of sperrylite is well exposed in a chalcopyrite vein that cuts across the top of this rock matrix. The crystasl is well formed but the faces are slightly contoured and pitted because of partial intergrowth with the chalcopyrite. As well, there is a chip out of the top of the crystal. Still, it is a very good example of this relatively rare mineral!