Pyromorphite, Mottramite
Allah Cooper Mine, Gold-Pyrite Belt, Louisa County, Virginia, USA
A curious sequence of pyromorphite crystals, on crystalline mottramite matrix; 0.3 cm field of view, vertical. Top crystal has a complete termination, each subsequent crystal in the line is progressively increasingly etched, the final, fourth crystal, is nearly completely gone, only some remnant portions of the outer walls of the crystal remain. ...
© 2010, JGW