Amazing colours in this highly polished Mintabie opal specimen (South Australia).
Dark and light grey background shows bright red, orange, green and little blue flashes. The colour bar on the hard sandstone is 5 to 6mm thick.
Specimen size 140 x 70mm, thickness 27mm. 289grams

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Weight 289 g
Dimensions 140 × 70 × 27 mm

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