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Opal
Opal

Eudialyte
Eudialyte



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Opal
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Eudialyte

Opal and Eudialyte Physical Properties

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Physical Properties

Tenacity

BrittleWalter Schumann
Brittle

Solubility

hot salt water
H₂SO₄

Durability

-
-

Specific Gravity

1.98-2.252.74-3.00
1 7.18
👆🏻

Fracture

Conchoidal
Uneven

Cleavage

None
Distinct on {0001} imperfect on {11 2 0}

Mohs Hardness

5-6.55-5.5
2 10
👆🏻

Chemical Composition

SiO2 · nH2O
Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.

Opal and Eudialyte Chemical Formula

While comparing Opal 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 Opal and Eudialyte chemical formula.

  • Chemical formula of Opal- SiO2 · nH2O
  • Chemical formula of Eudialyte- Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.

Opal and Eudialyte Specific Gravity

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