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  1. OPAL - Créateur et distributeur de lunettes depuis 1995

    Opal, leader dans les lunettes enfant, adolescent et la deuxième paire. Toutes les collections Solaires et Optiques : OWLET, Berenice, Star Wars ...

  2. Opal - Wikipedia

    The internal structure of precious opal causes it to diffract light, resulting in play-of-color. Depending on the conditions in which it formed, opal may be transparent, translucent, or …

  3. Pictures of Opal - Black, Fire, Boulder, Blue and Pink

    Photos of opal from around the world. Guidance for people who want to buy opal, see different types of opal, understand their names, learn about synthetics and imitations.

  4. 14 Different Types Of Opal And What They All Look Like

    Mar 5, 2025 · Explore the vibrant world of gemstones! Learn about the different types of opal and where to find them in our comprehensive guide.

  5. Opal Gemstone | Opal Stone – GIA

    Opal is the product of seasonal rains that drenched dry ground in regions such as Australia’s semi-desert “Outback.” It is known for its unique display of flashing rainbow colors.

  6. Opal | Properties, Types & Uses | Britannica

    Oct 8, 2025 · Opal, silica mineral extensively used as a gemstone, a submicrocrystalline variety of cristobalite. In ancient times opal was included among the noble gems and was ranked second …

  7. Opal Gemstone Information: Varieties, Colors, Care, and More

    Explore comprehensive opal gemstone information covering varieties like black, fire, and boulder opals, their colors and patterns, historical significance, care tips, and symbolic meanings for …

  8. Opal - International Colored Gemstone Association

    October’s birthstone, opal is a gem of positive transformation, revealing the colorful attributes of those who wear it. Magical, mysterious, and lively—opal is captivating new admirers with its …

  9. Opal Gemstone: History, Properties, Types, and Care

    Explore the enchanting world of opal, a gemstone known for its mesmerizing play-of-color and unique beauty. Learn about its formation, properties, famous finds, types of opal, and how to …

  10. Opal Stone Meaning, Uses, Properties, Value, & More

    Aug 11, 2021 · Opal gemstones are hydrated silica crystals that form over millions of years. Learn about opal details, including stone meanings and symbolism, history, pricing, and value.