Rainbow Black Opal Bracelet ~8mm Beads | Australia | SiO2 · nH2O | Polished Rainbow Opal

These incredible bracelets contain a world of color in their depth. Each bead can contain a variety of colors from blue to green to orange to red and beyond.
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The name comes from the Greek word opallios, meaning *to change color*, which these most certainly do with a wild color play.
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Metaphysically The ancient Greeks thought the stone could give people the gift of prophecy and protect them from disease.