Eudialyte and Lazurite Physical Properties
Solubility
H 2 SO 4
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.74-3.00
2.75
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)
Uneven, UnevenArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Distinct on {0001} imperfect on {11 2 0}
Imperfect on {110}
Chemical Composition
Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.
(Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Eudialyte and Lazurite Chemical Formula
While comparing Eudialyte and Lazurite 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 Lazurite 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 Lazurite- (Na,Ca) 8Al 6Si 6O 24(SO 4,S,Cl) 2Ulrich Henn and Claudio C.
Eudialyte and Lazurite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Eudialyte and Lazurite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Eudialyte and Lazurite Optical Properties during the identification of gemstone. Specific gravity of Eudialyte is 2.75 whereas that of Lazurite is 2.75.