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it’s a really good example of Urals Topaz
gemmy crystals are almost impossible to obtain from any locality
It is not from the typical Bolivian locality at the Unificada mine in Potosi
Quartz and Sphalerite
The famous Camp Bird Mine
Prehnite finger cast after Anhydrite Cerite it’s a really good exampleA 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
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