Nephrite and Sapphire Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
2.90-3.10
3.95-4.03
Fracture
Splintery, Granular, Splintery, Granular, Gemstones (2009)
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
Not Available
None, but may exhibit parting
Chemical Composition
Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
Al 2 O 3
Nephrite and Sapphire Chemical Formula
While comparing Nephrite and Sapphire 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 Sapphire 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 Sapphire- Al 2 O 3
Nephrite and Sapphire Specific Gravity
Another important criteria for qualitative analysis of gemstones is Nephrite and Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nephrite and Sapphire Optical Properties during the identification of gemstone. Specific gravity of Nephrite is 3.95-4.03 whereas that of Sapphire is 3.95-4.03.