Eudialyte and Achroite Physical Properties
Tenacity
Brittle
Not Available
Solubility
H 2 SO 4
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.74-3.00
2.90-3.40
Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
Distinct on {0001} imperfect on {11 2 0}
Not Available
Mohs Hardness
5-5.5
7-7.5
Chemical Composition
Na 4(Ca,Ce) 2(Fe,Mn,Y)ZrSi 8O 22(OH,Cl) 2Ulrich Henn and Claudio C.
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Eudialyte and Achroite Chemical Formula
While comparing Eudialyte and Achroite 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 Achroite 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 Achroite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Eudialyte and Achroite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Eudialyte and Achroite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Eudialyte and Achroite Optical Properties during the identification of gemstone. Specific gravity of Eudialyte is 2.90-3.40 whereas that of Achroite is 2.90-3.40.