enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Jet (gemstone) - Wikipedia

   en.wikipedia.org/wiki/Jet_(gemstone)

   Jet (gemstone) Jet is a type of lignite, [ 1] the lowest rank of coal, and is a gemstone. Unlike many gemstones, jet is not a mineral, but is rather a mineraloid. [ 2] It is derived from wood that has changed under extreme pressure. The English noun jet derives from the French word for the same material, jaiet (modern French jais ), ultimately ...

3. Sugilite - Wikipedia

   en.wikipedia.org/wiki/Sugilite

   Sugilite (/ ˈ s uː ɡ ə l aɪ t,-dʒ i-/ SOO-gə-lyte, -⁠jee-) [2] [3] is a relatively rare pink to purple cyclosilicate mineral with the complex chemical formula K Na 2 (Fe, Mn, Al) 2 Li 3 Si 12 O 30. Sugilite crystallizes in the hexagonal system with prismatic crystals. The crystals are rarely found and the form is usually massive.

4. Diamond (gemstone) - Wikipedia

   en.wikipedia.org/wiki/Diamond_(gemstone)

   Diamond[ a] is a gemstone formed by cutting a raw diamond. Diamonds are one of the best-known and most sought-after gems, and they have been used as decorative items since ancient times. The hardness of diamond and its high dispersion of light —giving the diamond its characteristic "fire"—make it useful for industrial applications and ...

5. Napoleon Diamond Necklace - Wikipedia

   en.wikipedia.org/wiki/Napoleon_Diamond_Necklace

   The Napoleon Diamond Necklace is somewhat atypical of other contemporary works produced by Marie-Étienne Nitot. [1] Other pieces commissioned from him by Emperor Napoleon, such as the two parures celebrating the Emperor's marriage to Archduchess Marie Louise of Austria, the Marie Louise Diadem, the wedding jewels for Empress Joséphine, etc., all demonstrate a predilection for highly ...

6. Prasiolite - Wikipedia

   en.wikipedia.org/wiki/Prasiolite

   Prasiolite (also known as green quartz, green amethyst or vermarine) is a green variety of quartz. Since 1950, almost all natural prasiolite has come from a small Brazilian mine, [citation needed] but it has also been mined in the Lower Silesia region of Poland. Naturally occurring prasiolite has also been found in the Thunder Bay area of ...

7. AOL Mail

   mail.aol.com

   You can find instant answers on our AOL Mail help page. Should you need additional assistance we have experts available around the clock at 800-730-2563.

8. Asterism (gemology) - Wikipedia

   en.wikipedia.org/wiki/Asterism_(gemology)

   A purple-pink star sapphire displaying asterism in a platinum ring. An asterism (from Ancient Greek ἀστήρ (astḗr) 'star' and -ism) is a star-shaped concentration of light reflected or refracted from a gemstone. It can appear when a suitable stone is cut en cabochon (i.e. shaped and polished, not faceted ). A gemstone that exhibits this ...

9. Luminous gemstones - Wikipedia

   en.wikipedia.org/wiki/Luminous_gemstones

   Luminous gemstones. Folktales about luminous gemstones are an almost worldwide motif in mythology and history among Asian, European, African, and American cultures. Some stories about light-emitting gems may have been based on luminescent and phosphorescent minerals such as diamonds.