RARE Copper replacement / pseudomorph after Agate (polished pair) Hugh Ford This boom at the San

This boom at the San Jose mine gave us a plethora of top-notch sulfides

It's nearly eye clean with an "Oval Brilliant" cut

A most unusual Danburite specimen from this famous locality

There were very few crystals with the quality of this piece in the lot

and it seems that less of them are coming out now compared to 15 - 20 years ago

RARE Copper replacement / pseudomorph after Agate (polished pair) Hugh Ford This boom at the SanThe famed Copper County of the Upper Peninsula of Michigan is one of the great Copper deposits in the world and has produced inarguably the largest quantity of superbly well crystallized specimens of the species ever found. It's not just crystallized Copper that makes this area so famous, as there are many other forms styles of Copper that exist, including the rarely seen Copper replacements pseudomorphs after Agate. This matched set started out as