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Monday, February 6, 2012

Cat’s Eye Apatite

Posted by slang on September 7, 2009

Cat's Eye Apatite

Apatite gets its name from the Greek word for “cheat”. The care for apatite should be quite careful as it is similar to that of opals which is heat and shock sensitive, so steamers and ultrasonic must be avoided. The stone is slightly too soft to recommend for rings. Cat’s eye apatite is generally untreated.

Like other selection of the cat’s eyes gemstone, look at :

  • Chatoyancy’s effect.

              When the stone is rotated, the cat’s eye glides over the surface. 

  • Clarity
    Apatite is usually a transparent gemstone. 
  • Cut
    The cabochon cut is excellent for a unique brooch or pendant, if its base is parallel to the fibers.

  Apatite’s Gemological Properties

Chemical Composition Ca5(PO4)3(F,OH,CI) basic fluoro- and chloro-calcium
Color Colorless, pink, yellow, green, blue and violet.
Moh Hardness 5
Specific Gravity 3.16 – 3.23
Refractive Index Birefringence: -0.002 to – -0.006
Crystal System (Hexagonal), columnar, thick tabula
Location Brazil, India, Kenya, Madagascar, Mexico, Myanmar (Burma), Norway, Sri Lanka, South Africa and the United States.
Color of the streak White to yellow-gray

 

Related posts:

  1. Cats’eye Gemological/Scientific Properties
  2. Properties Of Cat’s Eye
  3. Cats’eye Astrological/Mystical/Healing Properties

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