Blue Topaz Gemstone
The gem on the right is a london blue topaz weighing 2 26 carats. Topaz of all different colors are used in jewelry in rings earrings necklaces pendants and bracelets.
How topaz is formed.
Blue topaz gemstone. Large vivid blue topaz specimens from the st. The american golden topaz a more recent gem weighed a massive 22 892 5 carats. When molten lava or magma cools and solidifies it becomes igneous rock.
Anns mine in zimbabwe were found in the late 1980s. Two faceted ovals of blue topaz with a blue color produced by irradiating and then heating colorless topaz. Gigantic gems and faceted spheres are cut from huge flawless crystals and these make exquisite and exclusive collectors items.
Blue topaz is the gem of the 4th anniversary choose from sky blue swiss blue and london blue. Within this solid substance. It weighs approximately 2 02 carats.
Colorless topaz is plentiful and is often treated to give it a blue color. Imperial topaz ideally the color of the setting sun and the most valuable form of topaz is the stone of the 23rd anniversary. Colorless and light blue varieties of topaz are found in precambrian granite in mason county texas within the llano uplift.
There is no commercial mining of topaz in. Topaz is also pleochroic meaning that the gem can show different colors in different crystal directions. The gem on the left is an example of swiss blue topaz.
Gem stone king 925 sterling silver swiss blue topaz pendant necklace 9 72 cttw genuine emerald cut 14x10mm gemstone birthstone with 18 inch silver chain 4 4 out of 5 stars 56 89 99 89. Topaz actually has an exceptionally wide color range that besides brown includes various tones and saturations of blue green yellow orange red pink and purple. The blue orange and pink colors are most often cut as gemstones and colorless topaz is becoming increasingly popular as an inexpensive diamond simulant.
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