Opal, Boulder
Gemstone Type: Opal Gemstone Color: Boulder Gemstone Shape: Semi-round cabochon Country of Origin: Queensland, Australia Transparency: Opaque Condition: Size (mm): […]
Semi-Round Cabochon
- 02A – Sulfides
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- 03 – Halogenides
- 05A – Carbonates
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- 07A-C – Sulfates
- 07E-G – Molybdates
- 08B-C – Arsenates
- 09 – Silicates
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