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  2. 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]

  3. Diamond color - Wikipedia

    en.wikipedia.org/wiki/Diamond_color

    It was again broken in 2016 when the Oppenheimer Blue, a 14.62-carat (2.924 g) vivid blue diamond became the most expensive jewel ever sold at an auction. [19] It is the largest fancy vivid blue diamond classified by the Gemological Institute of America ever sold at auction; it sold at Christie's in Geneva in May 2016 for US$50.6 million.

  4. Jewellery - Wikipedia

    en.wikipedia.org/wiki/Jewellery

    It is an amulet, which comprises diamond, pearl, ruby, sapphire, emerald, topaz, cat's eye, coral, and hyacinth (red zircon). Each of these stones is associated with a celestial deity, representing the totality of the Hindu universe when all nine gems are together. The diamond is the most powerful gem among the nine stones.

  5. Diamond anvil cell - Wikipedia

    en.wikipedia.org/wiki/Diamond_anvil_cell

    The operation of the diamond anvil cell relies on a simple principle: =, where p is the pressure, F the applied force, and A the area. Typical culet sizes for diamond anvils are 100–250 micrometres (μm), such that a very high pressure is achieved by applying a moderate force on a sample with a small area, rather than applying a large force on a large area.

  6. Pink diamond - Wikipedia

    en.wikipedia.org/wiki/Pink_diamond

    (One day later, he also purchased the 12.03 carat Blue Moon of Josephine Diamond for $48.5 million. Both diamonds were bought as gifts for his daughter, Josephine, born in 2008, as was the 7.03-carat Blue Moon diamond, which he renamed the Star of Josephine diamond, purchased in 2009 for $9.5 million.) [28]

  7. Ruby-throated hummingbird - Wikipedia

    en.wikipedia.org/wiki/Ruby-throated_hummingbird

    The ruby-throated hummingbird (Archilochus colubris) is a species of hummingbird that generally spends the winter in Central America, Mexico, and Florida, and migrates to Canada and other parts of Eastern North America for the summer to breed. It is the most common hummingbird in eastern North America, having population estimates of about 35 ...

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