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Kyanite
Kyanite

Moldavite
Moldavite



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Kyanite
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Moldavite

Kyanite and Moldavite Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.53-3.652.32-2.38
Amber
1 7.18
1.5 Fracture
Splintery, Brittle, Metallic
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)
1.6 Cleavage
[100] perfect [010] imperfect with 79° angle between
Not Available
1.7 Mohs Hardness
4-75.5
Amber
2 10
1.8 Chemical Composition
Not Available
SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)

Kyanite and Moldavite Chemical Formula

While comparing Kyanite and Moldavite 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 Kyanite and Moldavite chemical formula.

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  • Chemical formula of Moldavite- SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)

Kyanite and Moldavite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kyanite and Moldavite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Moldavite Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 2.32-2.38 whereas that of Moldavite is 2.32-2.38.