A fantastic windowpane cluster of Wulfenite on a little Mottramite matrix, the largest crystal is perfect, the only damage is to the corner of the secondary crystal in front. Other smaller crystals with similar transparency surround the base. Perky box mounted, the largest crystal is .375" along its most measurable edge. 79 Mine, Chilito, Hayden area, Banner Mining District, Gila County, Arizona, USA