Prehnite finger cast after Anhydrite Diopside One of the very few

One of the very few pieces from this uncommon find in Cunningham Gulch

Specimen # BROOK31929

especially with any kind of aesthetic appeal like this one

Associated minerals include Quartz

The majority of the specimens from this find were merely single crystals off matrix

Prehnite finger cast after Anhydrite Diopside One of the very fewAn intersecting pair of finger shaped Prehnite casts after Anhydrite sit in a very thin layer of soft yellow green Prehnite matrix. The piece has a coating of a secondary clay mineral that cannot be removed, hence the reduced price, but is in good shape all the way around. The underside of the specimen shows the square cross sections where the once preexisting Anhydrite once grew. The Prospect Park Quarry is arguably the most famous mineral producing