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Kyanite
Kyanite

Uvite
Uvite



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Kyanite
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Uvite

Kyanite and Uvite 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
3.53-3.65
2.97-3.14
1.5 Fracture
Splintery, Brittle, Metallic
Uneven, Conchoidal, Brittle
1.6 Cleavage
[100] perfect [010] imperfect with 79° angle between
{1011} Indistinct
1.7 Mohs Hardness
4-7
Not Available
1.8 Chemical Composition
Not Available
Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Kyanite and Uvite Chemical Formula

While comparing Kyanite and Uvite 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 Uvite chemical formula.

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  • Chemical formula of Uvite- Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Kyanite and Uvite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kyanite and Uvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Uvite Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 2.97-3.14 whereas that of Uvite is 2.97-3.14.