“Fossils from Lightning Ridge are often preserved as colorless and valueless potch or common opal but occasionally they can be composed of precious opal, including the prized Black Opal, and can be exceeding high in value” https://t.co/MKkUY4bAiW

“Fossils from Lightning Ridge are often preserved as colorless and valueless potch or common opal but occasionally they can be composed of precious opal, including the prized Black Opal, and can be exceeding high in value”

https://t.co/MKkUY4bAiW

— Warren Myers 🐧🐿 (@warrenmyers)
Oct 1, 2022

from Twitter https://twitter.com/warrenmyers

October 01, 2022 at 02:53PM
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