47 mm Vivianite In Clam Shell from Crimea, Ukraine
Chernomorsky Mine, Kerchenskoe Deposit, Kerch Peninsula, Crimea, Ukraine
Size: 34x47x42 mm (67 gr.)
Dark vivianite crystals partially fill a cavity inside a fossil shell of a bivalve.
This specimen has a complete shell with big crystals.
It is not often you will see this material on the market nowadays. My father acquired this one in the early 2000s.