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George Robertson collection
This is a good-looking thumbnail sized "floater" pseudomorph of Copper after Azurite (commonly called a "Copper Rose") featuring a group notably sharp
Some of these "fingers" are broken and show a radial growth pattern in the center
Specimen # BOL711B151
well-formed crystal faces on all sides
Prehnite finger cast after Anhydrite Panasqueira George Robertson collectionA pair of classic finger shaped casts of Prehnite after Anhydrite with good luster on the display side, and a slight coating of a secondary clay mineral on the back. The gemminess and color make it a worthwhile toenail sized specimen of this well contemporary classic material. The underside of the piece shows the square cross section of the once preexisting Anhydrite crystals that were the base for the cast. The Prospect Park Quarry is arguably the
