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