Locality: Copper Queen Mine, Bisbee, Cochise County, Arizona. Size Class: Large Cabinet. Collection: Dr. Peter Bancroft Collection, Jack and Judy Farnham Collection. Found around the turn of the 1900s, this gem-grade, solid, 7.5 pound specimen of malachite is a remarkable survivor of times past. Most such specimens were long ago cut for lapidary use in jewelry and carving material. Bisbee, at the time, was the largest copper mine on earth and the source of most malachite and azurite for major museum collections as pieces were traded far and wide. This particular piece ended up in the collection of Dr. Peter Bancroft of Fallbrook , CA, the author of the 1984 book "Gem & Crystal Treasures". It remained in his collection until it passed to the Farnham collection in the early 2000s. This specimen comes with a custom lucite display base. Consigned from a private collection in Louisiana: The Farnhams were noted for their large collection consisting entirely of classic USA localities in large sizes. Size 25.3 x 22.5 x 13.0 cm.