This Australian Boulder Opal specimen from southwest Queensland showcases vibrant blue opal beautifully contrasted with areas of colorless opal. The back of the specimen clearly displays how the opal naturally forms and flows through the host rock, offering a fascinating look at its geological structure.
Origin: Queensland, Australia Dimensions: 40 mm (L) × 106 mm (H) × 36 mm (W) Weight: 0.28 kg
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