Location:

Great Bear Lake, Northwest Territories, Canada

Granites have intruded and metamorphosed Aphebian calc-alkaline volcanics and volcaniclastics to produce sulphide skarns.

Major Minerals:

Pyrite, chalcopyrite, magnetite

Minor Minerals:

Pyrrhotite, marcasite, sphalerite, galena

Trace Minerals:

Includes pyrargyrite

Textures:

Pyrrhotite laths have altered to pyrite and marcasite. Chalcopyrite, pyrite and sphalerite form complex intergrowths

Reference:

Badham, 1975