Star Sapphire and Moissanite Physical Properties

Star Sapphire

Moissanite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

none

1.3 Durability

Not Available

1.4 Specific Gravity

3.90-4.053.17-3.24

1 7.18

1.5 Fracture

Not Available

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

1.6 Cleavage

Not Available

(0001) indistinct

1.7 Mohs Hardness

Not Available9-9.5

2 10

1.8 Chemical Composition

Al 2O 3Ulrich Henn and Claudio C.

SiCArthur Thomas , Gemstones (2009)

Star Sapphire and Moissanite Chemical Formula

While comparing Star Sapphire and Moissanite 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 Moissanite chemical formula.

Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.
Chemical formula of Moissanite- SiCArthur Thomas , Gemstones (2009)

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Star Sapphire and Moissanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Sapphire and Moissanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Moissanite Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 3.17-3.24 whereas that of Moissanite is 3.17-3.24.