Cutting Ethiopian Opals: A Guide from Rough Stone to Cabochon
Grinding Welo Opals Yourself: Equipment, Step-by-Step Instructions, the Hydrophane Peculiarity, and the Most Common Beginner Mistakes – Explained by the Swiss Opal Grinder.
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About Ethiopian Opals
Ethiopian opals have become real competition for Australian opals in recent years. These gemstones, which are mainly found in the Wollo region of Ethiopia, fascinate with their intense play of...
