2.33ct Round Cabochon Opal 9.8x3.7mm Jewellers Microscope Control the temperature by setting

Control the temperature by setting Set Value and Difference Value of the temperature

Melting capacity available: 2 kg

1 * 90mm Diameter Lens

Power Supply: 1 * 6F22 9V Battery (NOT included)

professional style

2.33ct Round Cabochon Opal 9.8x3.7mm Jewellers Microscope Control the temperature by settingOpal 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