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Specimen #PREH31118
This piece is rather difficult to photograph
these crystals show an intense deep blood-red color when backlit
The crystal has an interesting zone near the termination that looks like a snow-capped peak
the subscript "N" is to imply its structure is network-like
Prehnite finger cast after Anhydrite Epidote Specimen #PREH31118A classic, thick, single finger shaped cast of Prehnite after Anhydrite with good gemminess and luster on the display side, and a slight coating of a secondary clay mineral on the back. The side of the piece has a second spherical aggregate that was contact upon extraction from the pocket. 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
