Okay all - This is the new find from Rodney Frisby who was the miner who found the Vulture Mountain Shattuckite vein. This guy has a very rare ability to search out and find rare copper stones psuedomorphed with Quartz. His latest find is for the Harquahala Mountains in Arizona and this Shattuckite is nearly 100% silicated to Quartz. There are several significant differences from the Vulture Mountain stone. 1) This Shattuckite is hard and has less pits, vugs and lines that the Vulture Mountain stone. 2) The Shattuckite has inclusions of Chalcocite that are nearly fully silicated. These show up as black spots when viewed from one direction and as a bright silver metallic spot from the opposite direction. 3) There is a lot less Chrysocolla, Cuprite and Malachite in the pieces I got. Rodney indicates that this appears to be a very small find. All of what he found fit into one flat rate box and I bought all of it. After getting my assessment of the stone he will be going back to see if he can pry out some more pieces large enough for knives. Here are some photos of test cuts through the vein.