Eudialyte and Anorthite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
H 2 SO 4
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.74-3.00
  
2.77
  
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)
  
Uneven, Uneven, Gems, Sixth Edition (2006)
  
Cleavage
Distinct on {0001} imperfect on {11 2 0}
  
Perfect [001] good [010] poor [110]
  
Mohs Hardness
5-5.5
  
6-6.5
  
Chemical Composition
Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.
  
CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Eudialyte and Anorthite Chemical Formula
While comparing Eudialyte and Anorthite 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 Eudialyte and Anorthite chemical formula.
- Chemical formula of Eudialyte- Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.
- Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Eudialyte and Anorthite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Eudialyte and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Eudialyte and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Eudialyte is 2.77 whereas that of Anorthite is 2.77.