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Opal Stone Properties

Publised on Oct 22,2013

Summary : 
Gemstone: Opal
Other Names: Upal
Color: White, Pink, Blue, Green
Ruling Planet: Venus & Mars
Moh’s Scale: 5.5-6
Specific Gravity: 2.15
Metal to Wear in: Silver or Gold
Origin: Australia, Ethiopia, Welo,Nevada, Spencer (Idaho), Brazil, Indonesia

The nature has bestowed us with countless things and the best part is that everything is more beautiful and magnificent than the last. Out of all the gemstones, the one which constitutes all the colors of the visible spectrum is the splendid Opal. The name given to this gemstone comes from a Greek word “Opallus” which stands for “to see a change”. The usage and desire to own an Opal dates back to the Greek & Roman times, where Mark Antony craved for the “Opal of Nonius” owned by the Roman Senator Nonius.
White Opal
What is an Opal?

Opal Stone is a precious hydrated gemstone from the family of Silica. The water content of this gemstone can vary from 3% to 21% which normally ranges in between 6% to 10% by weight. This gemstone is termed as a mineraloid due to its amorphous character. With a mild rating of 5.5 to 6 on Moh’s scale of hardness, this precious gemstone bears about half the hardness of a diamond. The mesmerizing beauty of this sensuous stone attracts every eye which catches its glimpse. A distinctive feature of this stone is the play of all the visible colors of the spectrum. This phenomenal color play of an Opal is termed as Opalescence. The colors inside this splendid gemstone change with a slightest movement or change in the viewing angle. (See: Opal Stone Astrological Benefits )

Where is an Opal found?

• Australia rules the world in the mining and production of this alluring gemstone.
• This continent alone holds 97% of the total World’s production of Opal.
• Opal is termed as the National Stone of Australia due to its enormous rate of mining and production from this very continent.
• The small town of Coober Pedy, Australia is known for the mining of world’s largest Opal “Olympic Australis” in August 1956.
• The rest 3% of the world’s Opal mining and production takes place in Nevada, Spencer (Idaho), Brazil, Indonesia, Czech Republic, Turkey, Hungary and Guatemala.

Opal Gemstone 

What are the different colors available of an Opal?

The magnificence of an Opal is bestowed to the human beings in a variety of colors. The distinctive hues of this gemstone are transparent (color less), yellow, white, orange, red, blue, green, black and brown. The most common hues are white & green and the rarest of the rare hue is red against the black. Planets according to colors :

  • Pink Opal : Venus & Mars
  • Blue Opal:  Venus & Saturan
  • Green Opal: Venus & Mercury
     

How is an Opal treated?

The Opalescence or the characteristic play of colors of an opal is due to minute veins present inside it. But usually these veins are too thin and narrow, resulting in the artificial treatments to enhance this color play of this gemstone. For this purpose, the lighter Opal is attached to a darker mineral like basalt, ironstone or black opal. This black lower surface of this doublet enhances the color play and charm of the lighter Opal.
Another treatment of an Opal involves a triplet, in which an entrancing light shade gemstone is backed with a black Opal or a similar mineral like ironstone. Further, the front side, i.e. the lighter opal is covered with a transparent polished covering usually made up of plastic or clear quartz in order to protect the Opal.

Please visit here : http://www.gempundit.com/gemstones/opal 

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