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A very attractive and hard to find display specimen that would make a great addition to a Calcite suite or a collection of Colorado minerals
the Prehnites can sometimes leave unique finger-shaped casts
This piece was mined around 2000 and is one of the better Spinels from the collection of my father
From the "Alpine-type" collection of my father
Prehnite finger cast after Anhydrite Diopside A very attractive and hardA small miniature sized specimen of Prehnite after Anhydrite comprising finger shaped casts and balls with decent luster, gemminess and color. The piece has a light coating of a secondary clay mineral but does display well from several angles. A nice representative piece from this famous discovery. 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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