Star Sapphire and Jade Physical Properties

Star Sapphire

Jade

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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

3.90-4.052.90-3.38

1 7.18

1.5 Fracture

Not Available

Gemstones of the world (2001), Difficult, Splintery

1.6 Cleavage

Not Available

1 or 2,2 prismatic.

1.7 Mohs Hardness

Not Available6-7

2 10

1.8 Chemical Composition

Al 2O 3Ulrich Henn and Claudio C.

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

Star Sapphire and Jade Chemical Formula

While comparing Star Sapphire and Jade 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 Star Sapphire and Jade chemical formula.

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

Compare Blue Gemstones

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Star Sapphire Vs Tourmaline

Star Sapphire Vs Verdite

Star Sapphire and Jade Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Sapphire and Jade Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Jade Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 2.90-3.38 whereas that of Jade is 2.90-3.38.