Star Sapphire and Lawsonite Physical Properties

Star Sapphire

Lawsonite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.90-4.053.09

1 7.18

1.5 Fracture

Not Available

White, Yellow, Pale blue, Brittle, Uneven

1.6 Cleavage

Not Available

Perfect on {100} and {010}, imperfect on {101}

1.7 Mohs Hardness

Not Available8

2 10

1.8 Chemical Composition

Al 2O 3Ulrich Henn and Claudio C.

Not Available

Star Sapphire and Lawsonite Chemical Formula

While comparing Star Sapphire and Lawsonite 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 Lawsonite chemical formula.

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

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Star Sapphire and Lawsonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Sapphire and Lawsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Lawsonite Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 3.09 whereas that of Lawsonite is 3.09.