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Swiss blue topaz
Swiss blue topaz

Sillimanite
Sillimanite



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Swiss blue topaz
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Sillimanite

Swiss blue topaz and Sillimanite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Tough
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
Not Available3.20-3.26
Amber
1 7.18
1.5 Fracture
Not Available
Splintery
1.6 Cleavage
Not Available
{010} perfect
1.7 Mohs Hardness
Not Available6-7.5
Amber
2 10
1.8 Chemical Composition
Not Available
Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)

Swiss blue topaz and Sillimanite Chemical Formula

While comparing Swiss blue topaz and Sillimanite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Swiss blue topaz and Sillimanite chemical formula.

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  • Chemical formula of Sillimanite- Al 2SiO 5Michael O’Donoghue , Gems, Sixth Edition (2006)

Swiss blue topaz and Sillimanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Swiss blue topaz and Sillimanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Swiss blue topaz and Sillimanite Optical Properties during the identification of gemstone. Specific gravity of Swiss blue topaz is 3.20-3.26 whereas that of Sillimanite is 3.20-3.26.