Star Sapphire and Pearl Physical Properties

Star Sapphire

Pearl

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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

3.90-4.052.60-2.85

1 7.18

1.5 Fracture

Not Available

Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

Not Available

none

1.7 Mohs Hardness

Not Available2.5-4.5

2 10

1.8 Chemical Composition

Al 2O 3Ulrich Henn and Claudio C.

Not Available

Star Sapphire and Pearl Chemical Formula

While comparing Star Sapphire and Pearl 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 Pearl chemical formula.

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

Compare Blue Gemstones

Star Sapphire Vs Tortoiseshell

Star Sapphire Vs Verdite

Star Sapphire Vs Tourmaline

Star Sapphire and Pearl Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Sapphire and Pearl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Pearl Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 2.60-2.85 whereas that of Pearl is 2.60-2.85.