Quartz, Anhydrite

Unknown Owner

Help improve this recordNo owner is registered for this specimen yet. If it's yours or you know more about it, you can add the owner, provenance, publications and other details.

An unusual, rare and excellent Colorado pseudomorph. These specimens have been labeled as being quartz after baryte pseudomorphs, but given the fact that baryte is chemically inert and nearly impossible to dissolve, it is most likely that these pseudomorphs are quartz replacing anhydrite. With that said, this superb plate consists of textbook pseudomorphs showing the perfect orthorhombic, thin bladed form of the previous crystal which was replaced by very small, almost "sugary" white quartz crystals. Ex. Stoudt Collection.