A classic, old-time, Cornwall combination specimen with an impressive provenance, having been in the Sir Arthur Russell Collection. Lustrous, sharp, golden-brassy chalcopyrite crystals are richly strewn amongst the diverging quartz points on this fine specimen. The large chalcopyrite on the edge is 2.6 cm and the quartz points reach 3.6 cm. Ex. Baroness Burdett-Coutts (of France) to Sir Arthur Russell to the Field Museum of Chicago, and then on to the Dan Ehrling Collection of Milwaukee, Wisconsin. Accompanied by the original handwritten Russell label.