Tag: opal polishing

Opalized Pliosaurs and Other Fossils

Opalized Pliosaurs, and other fossils Opalized Pliosaurs, and other fossils including rough opal….It’s quite amazing that in the middle of the Australian dry outback you can find opalized pliosaurs and other fossils all opalized, sometimes with the most magnificent colors. Rough Opal is often found in the form of ancient sea creatures   Such was […]

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Opal Calibration Chart

Opal Calibration Chart Opal Calibration Chart: When you first get to know about cutting opals, the challenge is to be able to cut the stones in a perfect oval. After a while your eye gets used to it. You start using your fingers as a human lathe and you know just the right ‘touch’ as […]

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