Eudialyte and Pyrophyllite Physical Properties
Tenacity
Brittle
Not Available
Solubility
H 2 SO 4
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.74-3.00
2.65-2.90
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)
Gemstones (2009), Flexible Flexible fragments.
Cleavage
Distinct on {0001} imperfect on {11 2 0}
{001} Perfect
Mohs Hardness
5-5.5
Not Available
Chemical Composition
Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Eudialyte and Pyrophyllite Chemical Formula
While comparing Eudialyte and Pyrophyllite 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 Pyrophyllite 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 Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Eudialyte and Pyrophyllite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Eudialyte and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Eudialyte and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Eudialyte is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.