Mexican - Brilliant Transparent Crystal Opal

No Reserve Rainbow Transparent Opal Online Auctions x x carats Auction Opal Auctions.

Opal Pineapple - White Cliffs, NSW, Australia These pseudomorphs were formed when a mineral crystal of glauberite (or ikalite) was first replaced by calcite and then opalized. They are very rare and only found in White Cliffs, Australia

Opal Pineapple - White Cliffs, NSW, Australia These pseudomorphs were formed when a mineral crystal of glauberite (or ikalite) was first replaced by calcite and then opalized. They are very rare and only found in White Cliffs, Australia

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