Blue John and Eudialyte Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
H 2 SO 4
Durability
Not Available
Not Available
Specific Gravity
3.00-3.25
2.74-3.00
Fracture
Not Available
Uneven, UnevenArthur Thomas, Gemstones (2009)
Cleavage
Not Available
Distinct on {0001} imperfect on {11 2 0}
Mohs Hardness
Not Available
5-5.5
Chemical Composition
CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.
Blue John and Eudialyte Chemical Formula
While comparing Blue John 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 Blue John and Eudialyte chemical formula.
- Chemical formula of Blue John- CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Eudialyte- Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.
Blue John and Eudialyte Specific Gravity
Another important criteria for qualitative analysis of gemstones is Blue John and Eudialyte Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Blue John and Eudialyte Optical Properties during the identification of gemstone. Specific gravity of Blue John is 2.74-3.00 whereas that of Eudialyte is 2.74-3.00.