Nephrite and Obsidian Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.10
2.35-2.60
Fracture
Splintery, Granular, Splintery, Granular, Gemstones (2009)
Conchoidal, ConchoidalWalter Schumann, Conchoidal
Cleavage
Not Available
Not Available
Mohs Hardness
6-6.5
5-5.5
Chemical Composition
Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
Not Available
Nephrite and Obsidian Chemical Formula
While comparing Nephrite and Obsidian 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 Obsidian chemical formula.
- Chemical formula of Nephrite- Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
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Nephrite and Obsidian Specific Gravity
Another important criteria for qualitative analysis of gemstones is Nephrite and Obsidian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nephrite and Obsidian Optical Properties during the identification of gemstone. Specific gravity of Nephrite is 2.35-2.60 whereas that of Obsidian is 2.35-2.60.