mineralists: Clear Hyalite (Opal Var. Opal-AN) on a Hematite stained opal bed in a Rhyolite cavity from Hosszú Hill, Hungary

mineralists: Clear Hyalite (Opal Var. Opal-AN) on a Hematite stained opal bed in

mineralists: Clear Hyalite (Opal Var. Opal-AN) on a Hematite stained opal bed in

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mineralists: Clear Hyalite (Opal Var. Opal-AN) on a Hematite stained opal bed in a Rhyolite cavity from Hosszú Hill, Hungary

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