Quartz "cast" after Calcite

These specimens are some of the most classic Quartz after Calcite "casts" from any world locality. They are sometimes called epimorphs or perimorphs depending upon who you ask. With that said, this specimen is a fantastic example showing the perfect scalenohedral form of the previous Calcite crystals which were replaced, being coated by very small, almost "sugary", gem quality, colorless Quartz crystals. The Calcite crystals were then dissolved away by a solution that entered the pocket at a later date, leaving behind only the Quartz crystal "crust". A wonderful specimen from a district that produced some of the most classic "casts" from all of Colorado.

Specimen #WWMIX51813