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2. Opal - Wikipedia

   en.wikipedia.org/wiki/Opal

   Triplet opals tend to have a more artificial appearance and are not classed as precious gemstones, but rather "composite" gemstones. Jewelry applications of precious opal can be somewhat limited by opal's sensitivity to heat due primarily to its relatively high water content and predisposition to scratching. [12]

3. Ammolite - Wikipedia

   en.wikipedia.org/wiki/Ammolite

   Ammolite is an opal-like organic gemstone found primarily along the eastern slopes of the Rocky Mountains of North America.It is commonly unearthed by natural erosion or through the process of various mining practices, within the perimeter of an ancient sea bed called the Western Interior Seaway. [2]

4. Jewels of Elizabeth II - Wikipedia

   en.wikipedia.org/wiki/Jewels_of_Elizabeth_II

   This necklace was made by Garrards in 1911 for Queen Mary as part of a suite of jewellery made for the 1911 Delhi Durbar. [85] The diamond pendant is the Cullinan VII, and the 9 cabochon emeralds are from a cache of 40 emeralds won by Princess Augusta, Duchess of Cambridge in a State lottery in Frankfurt. [86]

5. Andamooka Opal - Wikipedia

   en.wikipedia.org/wiki/Andamooka_Opal

   The Andamooka Opal is a famous opal which was presented to Queen Elizabeth II in 1954 on the occasion of her first visit to South Australia. The opal was mined in Andamooka in 1949. The opal was cut and polished by John Altmann to a weight of 203 carats (40.6 g).

6. List of individual gemstones - Wikipedia

   en.wikipedia.org/wiki/List_of_individual_gemstones

   Andamooka Opal, presented to Queen Elizabeth II, also known as the Queen's Opal; Flame Queen Opal; Galaxy Opal; Halley's Comet Opal, the world's largest uncut black opal; Olympic Australis Opal, reported to be the largest and most valuable gem opal ever found

7. List of jewellery types - Wikipedia

   en.wikipedia.org/wiki/List_of_jewellery_types

   This page was last edited on 25 December 2024, at 14:17 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.