Hemimorphite and Elbaite Physical Properties
Specific Gravity
3.30-3.50
2.90-3.10
Fracture
Uneven, ConchoidalWalter Schumann, Conchoidal
Uneven, Conchoidal
Cleavage
Perfect on {110}, poor on {101}, {001} rare
Poor/indistinct on {1120} and {1011}
Chemical Composition
Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
Hemimorphite and Elbaite Chemical Formula
While comparing Hemimorphite and Elbaite 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 Hemimorphite and Elbaite chemical formula.
- Chemical formula of Hemimorphite- Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Elbaite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
Hemimorphite and Elbaite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hemimorphite and Elbaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hemimorphite and Elbaite Optical Properties during the identification of gemstone. Specific gravity of Hemimorphite is 2.90-3.10 whereas that of Elbaite is 2.90-3.10.