Nephrite and Pezzottaite Physical Properties

Nephrite

Pezzottaite

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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

2.90-3.102.90-3.14

1 7.18

1.5 Fracture

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

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

Not Available

Imperfect; basal

1.7 Mohs Hardness

6-6.57.5-8

2 10

1.8 Chemical Composition

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

(Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.

Nephrite and Pezzottaite Chemical Formula

While comparing Nephrite and Pezzottaite 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 Pezzottaite 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 Pezzottaite- (Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.

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Nephrite and Pezzottaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nephrite and Pezzottaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nephrite and Pezzottaite Optical Properties during the identification of gemstone. Specific gravity of Nephrite is 2.90-3.14 whereas that of Pezzottaite is 2.90-3.14.