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1. de.wikipedia.org › wiki › Opalvorkommen_in_AustralienOpalvorkommen in Australien – Wikipedia

   de.wikipedia.org › wiki › Opalvorkommen_in_Australien

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   In Australien gibt es den seltenen feuerflammenden Schwarzen Opal, Dunklen und Hellen Opal, Boulder-Opal, Matrix-Opal, Kristall-Opal und Yowah-Opal. Die meisten Opale Australiens sind sedimentären Ursprungs und vor allem etwa 18 Millionen Jahre alt.

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3. everlastingopalsaustralia.comAustralian Opals direct from the Miner | Free Shipping Available

   everlastingopalsaustralia.com

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   Shop online for the finest Australian opals, from solid stones to doublets, with free shipping worldwide. Customize your own opal jewellery or choose from our new releases and featured collections.

4. www.opal-australien.comOPAL AUSTRALIEN ÜBERSICHT - OPAL AUSTRALIEN

   www.opal-australien.com

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   Willkommen bei Opal Australien. Auf dieser Seite sehen Sie wunderschöne australische Opale direkt aus der Schleiferei. Durch klicken auf ein Bild öffnet sich die jeweilige Kategorie.

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     Australian Opals Different types explained

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     14:33

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     Australian Opal - A World Tour of Opal, Part 1

     17. März 2018

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     7:38

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     The Most Beautiful and Colourful Opals to be Found | Outback Opal Hunters

     6. Juni 2020

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6. www.opalsdownunder.com.auOpals Down Under | Australian Opals and Opal Jewellery

   www.opalsdownunder.com.au

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   Australian Opal Jewellery. There is no gemstone on earth that is as unique or mesmerizing as an Australian opal. We have a full range of both contemporary and traditional jewellery settings, designed, selected and crafted to suit your unique taste and budget. View Our Range

7. www.gemsociety.org › article › australian-opalsAustralian Opals: An Introduction - International Gem Society

   www.gemsociety.org › article › australian-opals

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   Learn about the formation, history, and sources of Australian opals, which account for 95% of the world's supply. See photos of different types of opals, such as black, light, white, and boulder opals.

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8. opalstoyou.com.auHome - Opals To You | Buy Opals Online Direct from the Mines

   opalstoyou.com.au

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   AUSTRALIAN OPALS. We are proud to be able to offer you our range of 100% Natural Solid Australian Opals for sale from our trusted online store Opals To You.

9. australian.museum › learn › mineralsOpal - The Australian Museum

   australian.museum › learn › minerals

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   Opal is a hardened gel of silica and water (usually 6 – 10%). Its physical properties vary with differences in its structure and water content. Unlike other minerals opal is amorphous, with no definite crystal structure. Opal is a common mineral, found in many countries and various geological environments. To distinguish this ordinary opal ...