Opalised Bivalve Shell - Lightning Ridge #4

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This 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 is technically not a crystal as it does not have a defined crystal structure. The colour comes from the tiny Silica spheres that make up the crystal, and they have to be arranged in a certain way and be a certain size to create the colour flashes. There are two main categories of Opal, common and precious. Common opal comes in a variety of colours such as greens, pinks, blues and white but does not display any flash or 'fire'. Precious Opal is typically black or white and is graded on the colour flash displayed. The most desired precious Opal comes from Australia and can fetch thousands of dollars per carat, whilst other famous localities include Ethiopian Welo Opal, Oregon, Mexico and Virgin Valley. Opal Healing Properties include: Provides emotional and mental balance Helps communication with other realms Aids in connecting with spirit and animal guides Boosts spiritual development Brings stability Show more