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Simpsonite
Simpsonite

Kyanite
Kyanite



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Simpsonite
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Kyanite

Simpsonite and Kyanite Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

-99993.53-3.65
1 7.18
👆🏻

Fracture

Conchoidal
Splintery

Cleavage

None
[100] perfect [010] imperfect with 79° angle between

Mohs Hardness

7-7.54-7
2 10
👆🏻

Chemical Composition

Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.
Al2SiO5

Simpsonite and Kyanite Chemical Formula

While comparing Simpsonite 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 Simpsonite and Kyanite chemical formula.

  • Chemical formula of Simpsonite- Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.
  • Chemical formula of Kyanite- Al2SiO5

Simpsonite and Kyanite Specific Gravity

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