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Ø46/50mm Die
63 Rockwell hardness
Measure Power Accuracy: (+/-)2% or (+/-)2W(0-100W)
Overall length 460mm
Bergeon 5700
1.23ct Round Cabochon Semi-Black Opal 9.8x6.9mm Urethane Pad 150 x 150mm Ø46/50mm DieOpal 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
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