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Kyanite
Kyanite

Eudialyte
Eudialyte



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Kyanite
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Eudialyte

Kyanite and Eudialyte Physical Properties

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Physical Properties

Tenacity

Brittle
Brittle

Solubility

-
H₂SO₄

Durability

-
-

Specific Gravity

3.53-3.652.74-3.00
1 7.18
👆🏻

Fracture

Splintery
Uneven

Cleavage

[100] perfect [010] imperfect with 79° angle between
Distinct on {0001} imperfect on {11 2 0}

Mohs Hardness

4-75-5.5
2 10
👆🏻

Chemical Composition

Al2SiO5
Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.

Kyanite and Eudialyte Chemical Formula

While comparing Kyanite and Eudialyte 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 Eudialyte chemical formula.

  • Chemical formula of Kyanite- Al2SiO5
  • Chemical formula of Eudialyte- Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.

Kyanite and Eudialyte Specific Gravity

Another important criteria for qualitative analysis of gemstones is Kyanite and Eudialyte Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Eudialyte Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 2.74-3.00 whereas that of Eudialyte is 2.74-3.00.