Nephrite and Atacamite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.10
3.745-3.776
Fracture
Splintery, Granular, Splintery, Granular, Gemstones (2009)
Conchoidal, Conchoidal, Brittle
Cleavage
Not Available
Perfect on {010}, fair on {101}
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
Cu2Cl(OH)3
Nephrite and Atacamite Chemical Formula
While comparing Nephrite and Atacamite 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 Atacamite 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 Atacamite- Cu2Cl(OH)3
Nephrite and Atacamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Nephrite and Atacamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nephrite and Atacamite Optical Properties during the identification of gemstone. Specific gravity of Nephrite is 3.745-3.776 whereas that of Atacamite is 3.745-3.776.