Datolite Epimorphs after Glauberite
Collection
John Betts - Fine Minerals
Description
White Datolite epimorphs after Glauberite crystals up to 15 mm across. The two large cavities left by Glauberite crystals, known as Glauberite casts, show smooth flat interior surfaces. Classic formation, the subject of much study throughout the years.
Locality
Prospect Park Quarry, Prospect Park, Passaic County, New Jersey
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