Andradite Garnet and Star Sapphire Physical Properties

Andradite 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

3.8-3.93.90-4.05

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

Ca₃Fe³⁺₂Si₃O₁₂

Al 2O 3Ulrich Henn and Claudio C.

Andradite Garnet and Star Sapphire Chemical Formula

While comparing Andradite 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 Andradite Garnet and Star Sapphire chemical formula.

Chemical formula of Andradite Garnet- Ca₃Fe³⁺₂Si₃O₁₂
Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

Compare Blue Gemstones

Andradite Garnet Vs Lemon quartz

Andradite Garnet Vs Rutilated topaz

Andradite Garnet Vs Trapiche emerald

Andradite Garnet and Star Sapphire Specific Gravity

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