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Emerald

London Blue Topaz

London Blue hue is created by Irradiating colorless topaz with electrons and it is very slightly greenish blue hue of topaz gemstone, originally topaz is a silicate mineral of aluminium and fluorine with the chemical formula Al2SiO4(F, OH)2. Generally more recognized for blue hue but topaz can be multi colored which ranges from blue, yellow, orange, green, purple, pink, red and colorless hues.

General Identification Facts

Mineral: Topaz [Al2SiO4(F,OH)2]
Color: Blue (Slightly Greenish hue)
Refractive Index: 1.619 to 1.627
Mohs Hardness: 8

Availability 

Size: Calibration 4x3 to 20x15 and then Free-Size
Shapes: Ovals, Octagons, Pear, Rounds, Marquise, Baguette, Heart. 

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Al Khor Street, Gold Souq Deira,
Dubai, United Arab Emirates

Phone:

+971 56 163 1100
+971 56 6787706

E-mail:

info@harshgems.com

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