Prehnite finger cast after AnhydriteAn 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

almost twirling “ridge” of tightly packed glass-like “beads” of Hyalite can be seen on all sides of the piece

This one is certainly a one-of-a-kind specimen

Porco is THE oldest and most significant Silver mine in Bolivia

A few of the Calcites are twinned

The crystals have a pastel yellowish-pink hue at the terminations which grade into a slight yellowish-green zoning and then a tan/bronze tone throughout the rest of the crystals

or a species/association collector

thumbnails or you've always wanted a really good Sapphire crystal for your collection

Specimen # BOL711B240

This specimen hosts a beautiful

This piece is a robust

wonderful display specimens and excellent associations

well-crystallized