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Ruby
Ruby

Kyanite
Kyanite



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Ruby
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Kyanite

Ruby and Kyanite Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.97-4.053.53-3.65
Amber
1 7.18
1.5 Fracture
Conchoidal
Splintery, Brittle, Metallic
1.6 Cleavage
No true cleavage
[100] perfect [010] imperfect with 79° angle between
1.7 Mohs Hardness
94-7
Amber
2 10
1.8 Chemical Composition
Al 2 O 3
Not Available

Ruby and Kyanite Chemical Formula

While comparing Ruby 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 Ruby and Kyanite chemical formula.

  • Chemical formula of Ruby- Al 2 O 3
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Ruby and Kyanite Specific Gravity

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