Jade and Sardonyx Physical Properties

Jade

Sardonyx

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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

2.90-3.382.55-2.70

1 7.18

1.5 Fracture

Gemstones of the world (2001), Difficult, Splintery

Not Available

1.6 Cleavage

1 or 2,2 prismatic.

Not Available

1.7 Mohs Hardness

6-76.5-7

2 10

1.8 Chemical Composition

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

SiO 2Ulrich Henn and Claudio C.

Jade and Sardonyx Chemical Formula

While comparing Jade and Sardonyx 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 Sardonyx chemical formula.

Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆
Chemical formula of Sardonyx- SiO 2Ulrich Henn and Claudio C.

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Jade and Sardonyx Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jade and Sardonyx Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jade and Sardonyx Optical Properties during the identification of gemstone. Specific gravity of Jade is 2.55-2.70 whereas that of Sardonyx is 2.55-2.70.