Anorthite and Nephrite Physical Properties

Anorthite

Nephrite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.772.90-3.10

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

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

1.6 Cleavage

Perfect [001] good [010] poor [110]

Not Available

1.7 Mohs Hardness

6-6.56-6.5

2 10

1.8 Chemical Composition

CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Anorthite and Nephrite Chemical Formula

While comparing Anorthite 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 Anorthite and Nephrite chemical formula.

Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Nephrite- Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

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Anorthite and Nephrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anorthite and Nephrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anorthite and Nephrite Optical Properties during the identification of gemstone. Specific gravity of Anorthite is 2.90-3.10 whereas that of Nephrite is 2.90-3.10.