Jade and Star Sapphire Physical Properties

Jade

Star Sapphire

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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

2.90-3.383.90-4.05

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

6-7Not Available

2 10

1.8 Chemical Composition

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

Al 2O 3Ulrich Henn and Claudio C.

Jade and Star Sapphire Chemical Formula

While comparing Jade and Star Sapphire 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 Star Sapphire chemical formula.

Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆
Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

Compare Semi Precious Gemstones

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Jade Vs Turquoise

Jade and Star Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jade and Star Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jade and Star Sapphire Optical Properties during the identification of gemstone. Specific gravity of Jade is 3.90-4.05 whereas that of Star Sapphire is 3.90-4.05.