Nephrite and Celestine Physical Properties
Specific Gravity
2.90-3.10
3.90-4.00
Fracture
Splintery, Granular
Conchoidal
Cleavage
None
Perfect on {001}, good on {210}, poor on {010}
Mohs Hardness
6-6.5
3-3.5
Chemical Composition
Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Nephrite and Celestine Chemical Formula
While comparing Nephrite and Celestine 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 Nephrite and Celestine chemical formula.
- Chemical formula of Nephrite- Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
- Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Nephrite and Celestine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Nephrite and Celestine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nephrite and Celestine Optical Properties during the identification of gemstone. Specific gravity of Nephrite is 3.90-4.00 whereas that of Celestine is 3.90-4.00.