Nephrite and Chalcedony Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
2.90-3.10
2.55-2.70
Fracture
Splintery, Granular, Splintery, Granular, Gemstones (2009)
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
Cleavage
Not Available
Absent
Mohs Hardness
6-6.5
6.5-7
Chemical Composition
Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
SiO2
Nephrite and Chalcedony Chemical Formula
While comparing Nephrite and Chalcedony 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 Chalcedony 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 Chalcedony- SiO2
Nephrite and Chalcedony Specific Gravity
Another important criteria for qualitative analysis of gemstones is Nephrite and Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nephrite and Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Nephrite is 2.55-2.70 whereas that of Chalcedony is 2.55-2.70.