Prehnite finger cast after Anhydrite inclusions The piece was mined in

The piece was mined in the mid 1990's

and while the main Brookites are undamaged

This is one of my favorite species from Bolivia

gemmy Quartz crystal matrix

Prehnite finger cast after Anhydrite inclusions The piece was mined 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