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Rock Crystal
Rock Crystal

Eudialyte
Eudialyte



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Rock Crystal
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Eudialyte

Rock Crystal and Eudialyte Physical Properties

Physical Properties

Tenacity

-
Brittle

Solubility

-
H₂SO₄

Durability

-
-

Specific Gravity

2.652.74-3.00
1 7.18
👆🏻

Fracture

ConchoidalWalter Schumann
Uneven

Cleavage

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

Mohs Hardness

75-5.5
2 10
👆🏻

Chemical Composition

SiO 2Walter Schumann , Gemstones of the world (2001)
Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.

Rock Crystal and Eudialyte Chemical Formula

While comparing Rock Crystal 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 Rock Crystal and Eudialyte chemical formula.

  • Chemical formula of Rock Crystal- SiO 2Walter Schumann , Gemstones of the world (2001)
  • Chemical formula of Eudialyte- Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.

Rock Crystal and Eudialyte Specific Gravity

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