Ruby and Fayalite Physical Properties

Ruby

Fayalite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.97-4.054.392

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

No true cleavage

{010} moderate, {100} imperfect

1.7 Mohs Hardness

96.5-7

2 10

1.8 Chemical Composition

Al ₂ O ₃

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

Ruby and Fayalite Chemical Formula

While comparing Ruby and Fayalite 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 Ruby and Fayalite chemical formula.

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

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Ruby and Fayalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Fayalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Fayalite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 4.392 whereas that of Fayalite is 4.392.