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Ulexite and Kyanite Physical Properties


Kyanite and Ulexite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
1.65-1.99   
3.53-3.65   

Fracture
UnevenAnthony et al, Uneven, UnevenAnthony et al, Uneven, Brittle, Metallic   
Splintery, Brittle, Metallic   

Cleavage
{010} Perfect, {110} Perfect   
[100] perfect [010] imperfect with 79° angle between   

Mohs Hardness
2-2.5   
4-7   

Chemical Composition
NaCaB 5O 6(OH) 6 · 5H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)   
Not Available   

Optical Properties >>
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Ulexite and Kyanite Chemical Formula

While comparing Ulexite 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 Ulexite and Kyanite chemical formula.

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Ulexite and Kyanite Specific Gravity

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

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