Nephrite and Hardystonite Physical Properties

Nephrite

Hardystonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.103.396-3.443

1 7.18

1.5 Fracture

Splintery, Granular, Splintery, Granular, Gemstones (2009)

Brittle, Metallic

1.6 Cleavage

Not Available

[001] good, [100] and [110] fair

1.7 Mohs Hardness

6-6.53-4

2 10

1.8 Chemical Composition

Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

Nephrite and Hardystonite Chemical Formula

While comparing Nephrite and Hardystonite 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 Hardystonite 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 Hardystonite- Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

Compare Green Gemstones

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Nephrite and Hardystonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nephrite and Hardystonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nephrite and Hardystonite Optical Properties during the identification of gemstone. Specific gravity of Nephrite is 3.396-3.443 whereas that of Hardystonite is 3.396-3.443.