Opalised Bivalve Shell - Lightning Ridge #4 Location_Madagascar but it was not formed

but it was not formed from a meteorite impact

called labradorescence

whilst other famous localities include Ethiopian Welo Opal

and has a stunning colour combination of creams

also known as banding

Opalised Bivalve Shell - Lightning Ridge #4 Location_Madagascar but it was not formedThis rare Opalised Bivalve shell is from Lightning Ridge, New South Wales, a famous Opal locale in Australia. Bivalves are a type of aquatic mollusc that have a 2 part shell. Clams, Oysters and Scallops are all species of Bivalves. This Opalised Bivalve, however, is from the Lower Cretaceous period making it around 110 million years old. You will receive the exact Opalised Bivalve Shell pictured. You will receive the exact Opal crystal pictured. Opal