Rainbow Topaz – The Delightfully Different Gemstone For Your Unique Style
Friday, 13. November 2009
Rainbow topaz, also known as mystic topaz, is a very elegant and trendy gemstone. It is a natural topaz that has been treated to display the desired rainbow effect. It is an inexpensive gemstone that makes for a unique piece of jewelry. Because of its unique multi-colored brilliance, it has become one of the most sought-after gems today.
Rainbow topaz is not a naturally occurring topaz, but is made from real topaz that is treated artificially with a thin film or coating to show the desired rainbow effect. This process is called vacuum deposition. Rainbow topaz is an enhanced treated colorless topaz with rainbow effect.
Typically, a thin layer of titanium or similar metal coating is applied to the stone’s pavilion, the underside angled portion that forms the bulk of the gem. This causes interference which results to various color effect of the rainbow. Natural refraction of the stone is altered by the coating, giving stunning rainbow colors. Rainbow topaz comes from pure topaz coated with ultra thin film similar to the ones used for camera films.
