Heavy silver ore specimen with cavity lined in pinkish looking drusy clear quartz with several well formed metallic grey pyrargyrite crystals with minor drusy pyrite crystals from the Fresnillo District, Zacatecas, Mexico. Zero damage. Awesome under the loupe. Comes with an old label from "Eckert Educational Minerals - 1244 East Colfax, Denver, Colorado". Measures 2.5 x 2.25 x 1.75 inches ( 6.4 x 5.7 x 4.4 cm).