Pearl and Star Sapphire Physical Properties

Pearl

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

2.60-2.853.90-4.05

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

none

Not Available

1.7 Mohs Hardness

2.5-4.5Not Available

2 10

1.8 Chemical Composition

Not Available

Al 2O 3Ulrich Henn and Claudio C.

Pearl and Star Sapphire Chemical Formula

While comparing Pearl 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 Pearl and Star Sapphire chemical formula.

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

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Pearl Vs Prase

Pearl and Star Sapphire Specific Gravity

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