Nephrite and Ajoite Physical Properties

Nephrite

Ajoite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Decomposed by acids

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.102.96

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

Not Available

Perfect on {010}

1.7 Mohs Hardness

6-6.55

2 10

1.8 Chemical Composition

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

(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

Nephrite and Ajoite Chemical Formula

While comparing Nephrite and Ajoite 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 Ajoite 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 Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)

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Nephrite and Ajoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nephrite and Ajoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nephrite and Ajoite Optical Properties during the identification of gemstone. Specific gravity of Nephrite is 2.96 whereas that of Ajoite is 2.96.