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Sugilite
Sugilite

Kyanite
Kyanite



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Sugilite
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Kyanite

Sugilite and Kyanite Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.69-2.793.53-3.65
Amber
1 7.18
1.5 Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Splintery, Brittle, Metallic
1.6 Cleavage
Poor on {0001}
[100] perfect [010] imperfect with 79° angle between
1.7 Mohs Hardness
5.5-6.54-7
Amber
2 10
1.8 Chemical Composition
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Not Available

Sugilite and Kyanite Chemical Formula

While comparing Sugilite and Kyanite 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 Sugilite and Kyanite chemical formula.

  • Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
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Sugilite and Kyanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sugilite and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sugilite and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Sugilite is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.