Forsterite and Star Sapphire Physical Properties

Forsterite

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

3.23-3.263.90-4.05

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

Perfect on {010} imperfect on {100}

Not Available

1.7 Mohs Hardness

6.5-7Not Available

2 10

1.8 Chemical Composition

Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Al 2O 3Ulrich Henn and Claudio C.

Forsterite and Star Sapphire Chemical Formula

While comparing Forsterite 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 Forsterite and Star Sapphire chemical formula.

Chemical formula of Forsterite- Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

Compare Green Gemstones

Forsterite Vs Grandidierite

Forsterite Vs Hackmanite

Forsterite Vs Grossular

Forsterite and Star Sapphire Specific Gravity

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