When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  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

    The black fire opal is the official gemstone of Nevada. Most of the precious opal is partial wood replacement. The precious opal is hosted and found in situ within a subsurface horizon or zone of bentonite, which is considered a "lode" deposit. Opals which have weathered out of the in situ deposits are alluvial and considered placer deposits.

  4. 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

  5. Terraria - Wikipedia

    en.wikipedia.org/wiki/Terraria

    Terraria is a 2D sandbox game with gameplay that revolves around exploration, building, crafting, combat, survival, and mining, playable in both single-player and multiplayer modes. [ 3 ] [ 4 ] The game has a 2D sprite tile-based graphical style reminiscent of the 16-bit sprites found on the Super NES . [ 4 ]

  6. Asterism (gemology) - Wikipedia

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

    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 effect is called a star stone or asteria.

  7. List of gemstones by species - Wikipedia

    en.wikipedia.org/wiki/List_of_gemstones_by_species

    Gadolinite; Gahnite; Gahnospinel; Garnet group: Pyralspite. Almandine; Pyrope; Spessartine; Ugrandite. Andradite. Demantoid; Melanite; Topazolite; Grossular ...

  8. Mineraloid - Wikipedia

    en.wikipedia.org/wiki/Mineraloid

    A mineraloid is a naturally occurring substance that resembles a mineral, but does not demonstrate the crystallinity of a mineral. Mineraloid substances possess chemical compositions that vary beyond the generally accepted ranges for specific minerals, for example, obsidian is an amorphous glass and not a true crystal; lignite is derived from the decay of wood under extreme pressure ...

  9. List of Jewelpets and Sweetspets - Wikipedia

    en.wikipedia.org/wiki/List_of_Jewelpets_and...

    In Kira Deco, he is one of Coal's lackeys and also an admirer to Opal, who plans on taking the Deco Stones for their master, the Dark General. He also has minor appearances in Happiness before his major role in episode 31, where he forms a Magic Gem with Nobara Kitajima. In Lady, he is the owner of a tea shop. Topaz (トパーズ, Topāzu) Topaz