Jade and Anorthite Physical Properties

Jade

Anorthite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.382.77

1 7.18

1.5 Fracture

Gemstones of the world (2001), Difficult, Splintery

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

1 or 2,2 prismatic.

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

1.7 Mohs Hardness

6-76-6.5

2 10

1.8 Chemical Composition

Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

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

Jade and Anorthite Chemical Formula

While comparing Jade and Anorthite 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 Jade and Anorthite chemical formula.

Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆
Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Jade and Anorthite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jade and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jade and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Jade is 2.77 whereas that of Anorthite is 2.77.