Forsterite and Ruby Physical Properties

Forsterite

Ruby

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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

3.23-3.263.97-4.05

1 7.18

1.5 Fracture

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

Conchoidal

1.6 Cleavage

Perfect on {010} imperfect on {100}

No true cleavage

1.7 Mohs Hardness

6.5-79

2 10

1.8 Chemical Composition

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

Al ₂ O ₃

Forsterite and Ruby Chemical Formula

While comparing Forsterite and Ruby 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 Ruby chemical formula.

Chemical formula of Forsterite- Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Ruby- Al ₂ O ₃

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Forsterite Vs Hackmanite

Forsterite and Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Forsterite and Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Forsterite and Ruby Optical Properties during the identification of gemstone. Specific gravity of Forsterite is 3.97-4.05 whereas that of Ruby is 3.97-4.05.