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Tanzanite
Tanzanite

Sylvite
Sylvite



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Tanzanite
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Tanzanite and Sylvite Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Soluble
1.3 Durability
Hard
Not Available
1.4 Specific Gravity
3.35
1.993
1.5 Fracture
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Uneven, Brittle
1.6 Cleavage
Perfect {010}, imperfect {100}
Perfect on [100], [010], [001]
1.7 Mohs Hardness
6.5-7
2.5
1.8 Chemical Composition
Ca2Al3(SiO4)3(OH)
Not Available

Tanzanite and Sylvite Chemical Formula

While comparing Tanzanite and Sylvite 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 Tanzanite and Sylvite chemical formula.

  • Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
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Tanzanite and Sylvite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tanzanite and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 1.993 whereas that of Sylvite is 1.993.