Bournonite, Pyrite, Quartz       Pachapaqui District, Bolognesi Province, Ancash Department, Peru.  Ex. Bill Metropolis.  This is a nice miniature sized example of this classic material.  It measures 6.2 x 3.7 x 2 cm and is coated on one side by attractive prismatic bournonites.  Slightly domical form gives it good views from all sides.  Damage-free.  Could use a good cleaning but otherwise a fantastic specimen.  $105