A sharp and unusual replacement of complex cuprites to 7mm, replaced completely by copper, and on a copper matrix. Extremely rare, although reported classic for this locality. I personally had not seen another as rich as this. An old specimen from the Cal Tech collection, bequeathed by Harry Ziesemer. From the number, you know it was been there a LONG time (probably 75-80 years at least). From the Cal Tech collections, by authorized exchange to a private collector a few years ago. Joe Budd Photos.