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