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10 PIECES ..LAB CREATED BLUE SAPPHIRE STAR ROUGH SYNTHETIC FLAME FUSION

$ 10.03

Availability: 100 in stock
  • Natural/Lab-Created: Lab-Created
  • All returns accepted: ReturnsNotAccepted
  • Condition: New without tags

    Description

    COLOR:
    Star Sapphire is Light to Dark Violet color...
    CHEMICAL COMPOSITION:
    Al2O3 (Aluminium Oxide)...
    ...
    SPECIFIC GRAVITY:
    3.95-4.1...
    REFRACTIVE INDEX:
    1.762-1.77...
    HARDNESS:
    9
    Verneuil method
    (or
    Verneuil process
    or
    Verneuil technique
    ), also called
    flame fusion
    ,
    Corundum
    has two primary gem varieties:
    ruby
    and sapphire. ... Because of
    corundum's hardness
    (pure
    corundum
    is defined to have 9.0 on the Mohs scale), it can scratch almost every other mineral. It is commonly used as an abrasive on everything from sandpaper to large tools used in machining metals, plastics, and wood.
    FLAME FUSION CORUNDUM
    10 PIECES
    LAB CREATED  blue sapphire  STAR SYNTHETIC CORUNDUM
    SHIP TOTAL:10 pieces
    SIZE 9X7MM OVAL CABOCHAN
    CUTTING AND SHIPPING FROM THAILAND
    AND ROUGH MADE IN JAPAN