Lustrous dendrites of Native Silver on Quartz matrix! An exceptional example of fine herringbone crystal formation, not from Batopilas, but from the San Genaro Mine. Brilliant luster rolls across the fine crystalline dendrites on both front and back with a 2+ cm spinel twin shooting across the very top. This is easily one of the most attractive small miniatures that I've seen from the San Genaro Mine. In excellent condition. From the San Genaro Mine, Castrovirreyna Province, Huancavelica Department, Peru. Measures 3.7 cm by 4.3 cm by 2.5 cm in total size.