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Showing posts with label Tanzanite. Show all posts
Showing posts with label Tanzanite. Show all posts

Thursday, March 22, 2012

TANZANITE

Tanzanite, also known as the zestier, was marketed by the American jeweler Tiffany. His intense blue dotted purple makes it very similar to sapphire or polite. Its rarity, combined with the high publicity it was the object, make a stone whose value is quite high. His only deposits are located in Tanzania and its main depot is now almost exhausted.

Characteristic

     Crystal system: Orthorhombic
     Chemical Composition: Calcium silicate and aluminum
     Color: Blue-violet
     Hardness: 6.5
     Specific gravity: 3.11 - 3.40
     Refractive index: 1.69 - 1.70
     Dispersion: 0030
     Polychrome: Purple, blue, brown

Sunday, January 29, 2012

Information About - Spinel, Tanzanite, Topaz.


Spinel
Spinel is a gemstone used in jewelry that can be found in virtually every color except yellow. The red has long been confused with ruby.

Tanzanite
Tanzanite is a gem transparent. Rocks freed from the earth's crust and washed into the magma fluid where they are based on small particles that are aimed at the inclusion of precious stones. This gem is very popular in jewelry for its strong pleochroism (brown, red and blue) where the blue and purple varieties are most popular.
Use: balancing virtues and HARMONISAT that can soothe nervous persons.
  
Topaz
The Topaz is a crystal used in jewelry, classified as fine stone, which comes in a wide variety of colors in nature: it can be colorless or it may be brown, yellow, yellow-orange, pink, red, green or blue (some darker shades can be obtained by heating or irradiation). Among the most sought-after figure in the famous imperial topaz gold color characteristic intense orange-red. To recognize a Topaz Citrine faceted one (yellow), an Amethyst (pale purple) or aquamarine (blue, blue-green), place your thumb on the table. It should slide like a soap moistened. Please note that the Citrine is sometimes mistakenly called "yellow topaz". Some unscrupulous dealers continue to use this name to fraudulently pass for Citrine Topaz. In jewelry, when properly cut, the colorless topaz can replace the diamond at lower cost.
Usage: easy sleep, awakens wisdom and away the sadness and melancholy.
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