Jadeite and Star Sapphire Physical Properties

Jadeite

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

3.28-3.383.90-4.05

1 7.18

1.5 Fracture

Splintery, UnevenArthur Thomas, Difficult, Fibrous

Not Available

1.6 Cleavage

Good on [110]

Not Available

1.7 Mohs Hardness

6.5-7Not Available

2 10

1.8 Chemical Composition

NaAlSi 2O 6Ulrich Henn and Claudio C.

Al 2O 3Ulrich Henn and Claudio C.

Jadeite and Star Sapphire Chemical Formula

While comparing Jadeite 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 Jadeite and Star Sapphire chemical formula.

Chemical formula of Jadeite- NaAlSi 2O 6Ulrich Henn and Claudio C.
Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

Compare Red Gemstones

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Jadeite and Star Sapphire Specific Gravity

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