Acanthite from the Mexican locales seldom occurs as large crystals on matrix. Here, however, we have a sharp, elongated crystal showing intricate hoppered faces, perched aesthetically on contrasting matrix. It is a superb display quality specimen, complete all around 360 degrees. Note the subtle rainbow iridescence in some faces and angles, indicating that the piece has NOT been cleaned in the usual acids and chemicals to "brighten" the acanthite and make it silvery. One can always go buy an acanthite from Mexico, sure; but this one is something special. Ex Kenneth Raab collection to Stoudt in 2002. Joe Budd photos.