Mineral Specimen and Product Inventory Search
- Guanajuato, Guanajuato, Mexico
- 2.5 x 2 x 2 cm - Thumbnail
- sulfide, silver
A fantastic specimen and classic from this locality. It is composed of tiny Chalcopyrite crystals which encrusted fairly good-sized Polybasite crystals to 5mm. You can make out the hexagonal outlines of the Polybasite. Sprinkled upon all of this are superb gray cubic Acanthite crystals to 4mm. The core as seen on the bottom is probably Pyrargyrite. It a very unique specimen. An example of one of these was featured on page 545 of Mineralogical Record v47 n5, Mexico VII.