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Non treated coral and impregnated coral
2024
Instituto Gemológico Español (IGE)
Madrid, Spain
A polymer or wax is applied in the surface of porous gems such as jade, opal, coral or turquoise to improve its appearance and to give a greater durability.
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Details
- Title: Non treated coral and impregnated coral
- Date: 2024
- Location: Madrid, Spain
- Type: Photograph
- Medium: Natural gemstone
- Photograph: Irene Gobet | Instituto Gemológico Español
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