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  2. Doublet (lapidary) - Wikipedia

    en.wikipedia.org/wiki/Doublet_(lapidary)

    A doublet is a type of assembled gem composed in two sections. [1] It is sometimes used to imitate other, more expensive gems. Opal Doublet. A garnet and glass doublet uses a top portion of natural garnet fused to any color of glass to imitate a gem. The color of glass used in the doublet is all that is seen, as the garnet provides no color.

  3. Opal - Wikipedia

    en.wikipedia.org/wiki/Opal

    An opal doublet consists of a relatively thin layer of precious opal, backed by a layer of dark-colored material, most commonly ironstone, dark or black common opal (potch), onyx, or obsidian. The darker backing emphasizes the play of color and results in a more attractive display than a lighter potch.

  4. World's most expensive opal literally glows in the dark - AOL

    www.aol.com/news/2015-08-13-world-s-most...

    Meet the "Virgin Rainbow" – perhaps the finest and certainly the most expensive opal on record. It literally glows in the dark. In fact, as it gets darker around the opal, the opal appears ...

  5. Talk:Opal - Wikipedia

    en.wikipedia.org/wiki/Talk:Opal

    Value of opals Opal is the [Queen of Gems]. ... Opal doublet; Opaline; Resin opals; Treated opal black; Triplex opals; White opal; ... Today, the covers of most ...

  6. 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]

  7. Lapidary - Wikipedia

    en.wikipedia.org/wiki/Lapidary

    A 17th century English lapidary text. The etymological root of the word lapidary is the Latin word lapis, meaning "stone". [5] In the 14th century, the term evolved from lapidarius, meaning 'stonecutter' or 'working with stone', into the Old French word lapidaire, meaning 'one skilled in working with precious stones'.

  8. 5 cancer types where screenings save the most lives - AOL

    www.aol.com/news/5-cancer-types-where-screenings...

    Over a 45-years span — between 1975 and 2020 — improvements in cancer screenings and prevention strategies have reduced deaths from five common cancers more than any advances in treatments ...

  9. ‘No one should have to be fighting cancer and insurance at ...

    www.aol.com/no-one-fighting-cancer-insurance...

    Where to shop today's best deals: Kate Spade, Amazon, Walmart and more. AOL. The best under-$50 clothing items to buy at Amazon right now. See all deals. In Other News. Entertainment.

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