Achroite and Nephrite Physical Properties

Achroite

Nephrite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.90-3.40

Uneven, ConchoidalWalter Schumann

Indiscernible

7-7.5

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

2.90-3.10

Splintery, Granular

None

6-6.5

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

Achroite and Nephrite Chemical Formula

While comparing Achroite and Nephrite 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 Achroite and Nephrite chemical formula.

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Achroite and Nephrite Specific Gravity

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