Opal and Eudialyte Physical Properties
Tenacity
BrittleWalter Schumann
Brittle
Solubility
hot salt water
H 2 SO 4
Durability
Not Available
Not Available
Specific Gravity
1.98-2.25
2.74-3.00
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
Uneven, UnevenArthur Thomas, Gemstones (2009)
Cleavage
None
Distinct on {0001} imperfect on {11 2 0}
Mohs Hardness
5-6.5
5-5.5
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.