Grossular Garnet and Star Sapphire Physical Properties

Grossular Garnet

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

3.63.90-4.05

1 7.18

1.5 Fracture

Not Available

1.6 Cleavage

None

Not Available

1.7 Mohs Hardness

6.5-7.5Not Available

2 10

1.8 Chemical Composition

Ca₃Al₂Si₃O₁₂

Al 2O 3Ulrich Henn and Claudio C.

Grossular Garnet and Star Sapphire Chemical Formula

While comparing Grossular Garnet 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 Grossular Garnet and Star Sapphire chemical formula.

Chemical formula of Grossular Garnet- Ca₃Al₂Si₃O₁₂
Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

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Grossular Garnet and Star Sapphire Specific Gravity

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