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Hurlbutite
Hurlbutite

Kyanite
Kyanite



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Hurlbutite
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Kyanite

Hurlbutite and Kyanite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.90
Conchoidal
None
6
CaBe 2(PO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006)
 
Brittle
-
-
3.53-3.65
Splintery
[100] perfect [010] imperfect with 79° angle between
4-7
Al2SiO5

Hurlbutite and Kyanite Chemical Formula

While comparing Hurlbutite 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 Hurlbutite and Kyanite chemical formula.

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Hurlbutite and Kyanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hurlbutite and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hurlbutite Vs Kyanite during the identification of gemstone. Specific gravity of Hurlbutite is whereas that of Kyanite is .