Nephrite and Villiaumite Physical Properties

Nephrite

Villiaumite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.102.79

1 7.18

1.5 Fracture

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

Brittle, Metallic

1.6 Cleavage

Not Available

{100} Perfect, {010} Perfect, {001} Perfect

1.7 Mohs Hardness

6-6.52

2 10

1.8 Chemical Composition

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

NaFUlrich Henn and Claudio C.

Nephrite and Villiaumite Chemical Formula

While comparing Nephrite and Villiaumite 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 Villiaumite 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 Villiaumite- NaFUlrich Henn and Claudio C.

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Nephrite and Villiaumite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nephrite and Villiaumite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nephrite and Villiaumite Optical Properties during the identification of gemstone. Specific gravity of Nephrite is 2.79 whereas that of Villiaumite is 2.79.