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Brazilianite
Brazilianite
☒

Kyanite
Kyanite
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Brazilianite
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Kyanite

Brazilianite and Kyanite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.98-2.99
Conchoidal
(010) Distinct to good
5.5
NaAl 3(PO 4) 2(OH) 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
Brittle
-
-
3.53-3.65
Splintery
[100] perfect [010] imperfect with 79° angle between
4-7
Al2SiO5

Brazilianite and Kyanite Chemical Formula

While comparing Brazilianite 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 Brazilianite and Kyanite chemical formula.

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Brazilianite and Kyanite Specific Gravity

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