Pyrite, Quartz, Calcite

This specimen features an exceptionally large pyrite crystal exposed from a calcite vein in limestone, carefully etched out using acid to reveal its full form. The piece is a striking example of classic Québec mineralogy and comes from the old stock collection of Robert Labbé.

The original label has this specimen listed as a "chalcopyrite", however I'm not persuaded that it is such. The form and colour tell me otherwise. The specimen originates from Sainte-Justine-de-Newton, Québec—most likely from the Trudeau quarry, a known source of well-crystallized sulphide minerals within calcite veins. The size and preservation of the pyrite make this an outstanding cabinet display worthy example from the locality.