Prehnite finger cast after Anhydrite Cerite These Calcite crystals occur in

These Calcite crystals occur in septarian nodules found in the Mancos shale formation

It is not from the typical Bolivian locality at the Unificada mine in Potosi

and this one is distinctive because it formed in a three-dimensional cluster with attractive

Quartz and Sphalerite

The famous Camp Bird Mine

Prehnite finger cast after Anhydrite Cerite These Calcite crystals occur inA classic, single finger shaped cast of Prehnite after Anhydrite with good luster on the display side, and a slight coating of a secondary clay mineral on the back. The underside of the piece shows the square cross section of the once preexisting Anhydrite crystal that was the base for the cast. The Prospect Park Quarry is arguably the most famous mineral producing basalt quarry in New Jersey and, for over a century, has provided collectors with