ex. Dr. Mark Feinglos Collection A surprisingly large and fine chalcopyrite from this ancient mining district, probably dating (i am told) to the late 1700s or very early 1800s! This large display piece is a major French classic, and comes with a historic old label (though we do not know whose it was). The large cluster atop is fully 2 inches across, and is possibly twinned. THis is a major chalcopyrite for any European locality, but we see particularly few old specimens from the St. Marie mines as opposed to German or English material which came out in a time an dplace where more collectors hoarded it away for the future.