Prehnite Cast After Anhydrite - image 1
Prehnite Cast After Anhydrite - image 2
Prehnite Cast After Anhydrite - image 3
Prehnite Cast After Anhydrite - image 4
Prehnite Cast After Anhydrite - image 5

Prehnite Cast After Anhydrite

Unknown Owner
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This is a magnificent, large, cluster of fingers of prehnite to 7 cm in length. Out of all of them, over a dozen, only one minor finger in the middle is broken off (and it is picked back to the contact so you only see it from the side view, anyhow. It is in pristine shape otherwise, complete all around and extremely 3-dimensional and space filling. The fingers of prehnite are all very lustrous and translucent with a superb, light apple-green color. One small 5 mm crystal of colorless calcite is perched between two fingers of prehnite, for a minor accent. The bottom of the specimen exhibits clear evidence of hollow casts, showing how the prehnite formed atop of and after what were once anhydrite crystals. A layer of calcite grew over part of the bottom, as well (photo on request). This is one of the largest pieces recovered in this quality, nearly pristine and without any repairs. It is thus a major New Jersey specimen, or US prehnite specimen, and for size and impact has a great presence as well.

Product details

SizeLarge Cabinet
Dimensions17.0 x 14.0 x 11.5 cm
Added on10/23/2024

Known provenance

DateCollectorAcquisition price
08/2024Unknown OwnerNot disclosed
The ArkenstoneNot disclosed

Learn more

Anhydrite
Mineral guide
Learn about Anhydrite
water-free CaSO4 crystals with orthorhombic cleavage, blue to lilac hues; prized for sharp forms, angelite color, and rare, unaltered specimens.
Regional guide
Anhydrite from Prospect Park Quarry
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