- Acanthite, Polybasite, Chalcopyrite
- Miniature, 3.9 x 3.6 x 3.3 cm
- San Juan de Rayas Mine (Rayas Mine; Reyes Mine), Guanajuato, Mun. de Guanajuato, Guanajuato, Mexico
A fine and rich silver ore combination specimen from the famous Rayas Mine at Guanajuato, Mexico. Sparkly, golden-yellow bright chalcopyrite microcrystals cover matrix of essentially solid, bladed polybasite. The polybasite blades poking through the chalcopyrite are iridescent and the whole piece is nicely accented by a couple of sharp, gray acanthite crystals. Ex. Dave Stoudt Collection.