Peridot and Ruby Physical Properties

Peridot

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

1.54-1.55

3.97-4.05

1.5 Fracture

Conchoidal

1.6 Cleavage

Poor

No true cleavage

1.7 Mohs Hardness

6.5-7

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

Al ₂ O ₃

Peridot and Ruby Chemical Formula

While comparing Peridot 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 Peridot and Ruby chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Ruby- Al ₂ O ₃

Compare Semi Precious Gemstones

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Peridot and Ruby Specific Gravity

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