Superb Minerals
Prehnite Natural Mineral Specimen # B 4596
Prehnite Natural Mineral Specimen # B 4596
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Features:
Primary Mineral: Prehnite (pseudomorph after laumontite)
Size: 9.1 x 7.1 inches (23 x 18 cm)
Size Class: Large Cabinet
Weight: 1,180 g (2.6 lb)
Locality: Malad Quarry, Mumbai, Maharashtra, India
Year of Discovery: 2021
A large, heavy jackstraw cluster of elongated laumontite crystals now fully replaced by mint-green, translucent prehnite. At 23 cm and nearly 1.2 kg, it is one of the more substantial examples of this classic Mumbai pseudomorph, with the crossed prisms packed densely enough to give the piece real heft.
Malad Quarry in Mumbai built its reputation on vintage material like this. Since its closure as the city grew, prehnite after laumontite has come almost exclusively from older collections and stock, and specimens of this size are increasingly difficult to source.