Tag: opal rough parcels for sale

Opalized Pliosaurs and Other Fossils

Opalized Pliosaurs, and other fossils including rough opal Rough Opal is often found in the form of ancient sea creatures     Such was the case in regard to ‘Eric’ the Opalized Pliosaur which was found in the famous White Cliffs Opal mine in South Australia. Other specimens have been found at Coober Pedy and […]

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How to Grade Rough Opal

How rough opal is Graded and Sold To grade rough opal, you might just make three piles of stones. One pile represents the stones with the greatest potential with the most obvious color and of course this is the main reason for checking the opal, because if the stones are just black or white potch, or […]

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