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Enables professional users to validate the identity of gemstones
Item Height: 1
Height of body not including lip 140mm
Display: 3 1/2 digits LCD Display
Jaws 15mm length
2.37ct Oval Cabochon Opal 18x5.5mm Casting Flask Ø90 x 65mm Enables professional users to validateOpal is probably the most famous phenomenal stone displaying the unparalleled play of colour, a rainbow coloured kaleidoscopic effect. The name opal derives from the word 'opalus' given by the Romans, which is Latin for 'precious stone'. They can be fragile which makes it more suitable for jewellery such as necklaces, brooches and earrings that are less likely to be knocked. Opal is the birthstone for October. Mohs Scale of Hardness: 5. 5 6. 5