Jade and Gahnite Physical Properties

Jade

Gahnite

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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

2.90-3.384.00-4.62

1 7.18

1.5 Fracture

Gemstones of the world (2001), Difficult, Splintery

Conchoidal, Uneven

1.6 Cleavage

1 or 2,2 prismatic.

Indistinct parting on [111]

1.7 Mohs Hardness

6-77.5-8

2 10

1.8 Chemical Composition

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

ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Jade and Gahnite Chemical Formula

While comparing Jade and Gahnite 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 Gahnite chemical formula.

Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆
Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Jade and Gahnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jade and Gahnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jade and Gahnite Optical Properties during the identification of gemstone. Specific gravity of Jade is 4.00-4.62 whereas that of Gahnite is 4.00-4.62.