Sapphire

The 423-carat (85 g) blue [[Logan Sapphire]] Sapphire is a precious gemstone, a variety of the mineral corundum, consisting of aluminium oxide () with trace amounts of elements such as iron, titanium, chromium, vanadium, or magnesium. The name sapphire is derived from the Latin "saphirus" and the Greek "sapheiros", both of which mean blue. It is typically blue, but natural "fancy" sapphires also occur in yellow, purple, orange, and green colors; "parti sapphires" show two or more colors. Red corundum stones also occur, but are called rubies not sapphires. Pink-colored corundum may be classified either as ruby or sapphire depending on locale. Commonly, natural sapphires are cut and polished into gemstones and worn in jewelry. They also may be created synthetically in laboratories for industrial or decorative purposes in large crystal boules. Because of the remarkable hardness of sapphires – 9 on the Mohs scale (the third hardest mineral, after diamond at 10 and moissanite at 9.5) – sapphires are also used in some non-ornamental applications, such as infrared optical components, high-durability windows, wristwatch crystals and movement bearings, and very thin electronic wafers, which are used as the insulating substrates of special-purpose solid-state electronics such as integrated circuits and GaN-based blue LEDs. Sapphire is the birthstone for September and the gem of the 45th anniversary. A sapphire jubilee occurs after 65 years. Provided by Wikipedia
Showing 1 - 9 results of 9 for search 'Sapphire, 1950-', query time: 0.16s Refine Results
  1. 1
    by Sapphire, 1950-
    Published 1996
    Book
  2. 2
    by Sapphire, 1950-
    Published 1994
    Book
  3. 3
    by Sapphire, 1950-
    Published 2011
    CD Audio Book
  4. 4
    by Sapphire, 1950-
    Published 2000
    Book
  5. 5
    by Sapphire, 1950-
    Published 2009
    Other Authors: ...Sapphire, 1950-...
    CD Audio Book
  6. 6
    by Sapphire, 1950-
    Published 2000
    Book
  7. 7
    by Sapphire, 1950-
    Published 1987
    Book
  8. 8
    by Grigorov, Mario
    Published 2010
    Other Authors: ...Sapphire, 1950-...
    Video DVD
  9. 9
    Published 2010
    Other Authors: ...Sapphire, 1950-...
    Video DVD