Star Sapphire and Forsterite Physical Properties

Star Sapphire

Forsterite

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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

3.90-4.053.23-3.26

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

Perfect on {010} imperfect on {100}

1.7 Mohs Hardness

Not Available6.5-7

2 10

1.8 Chemical Composition

Al 2O 3Ulrich Henn and Claudio C.

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

Star Sapphire and Forsterite Chemical Formula

While comparing Star Sapphire and Forsterite 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 Forsterite chemical formula.

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

Compare Blue Gemstones

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Star Sapphire Vs Tortoiseshell

Star Sapphire Vs Tourmaline

Star Sapphire and Forsterite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Sapphire and Forsterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Forsterite Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 3.23-3.26 whereas that of Forsterite is 3.23-3.26.