Arsenopyrite from Tajo Mine, Hidalgo del Parral, Chihuahua, Mexico

How often do you see specimens from this location? A fine arsenopyrite crystal group with quartz crystals; a locality specimen.
Dimensions: 5.1 x 4.4 x 2.5 cm
Species: Arsenopyrite, Quartz
Locality: Tajo Mine, Hidalgo del Parral, Chihuahua, Mexico