bijoux-et-mineraux:
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
Geology Nerd
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