This is a beautiful silver specimen with accents of native copper on some of the silver, which provide s areally nice contrast. The silver and copper metals are not intermixed. Although no old label comes with the specimen, it is numbered on the bottom ANSP#23423 which indicates an age in the 1930s, probably. Several of these crrystals exceed 1 cm individually, and about an inch in aggregate. The cluster has a swaying look to it, as if it is caught in motion, "moving."