Ruby and Peridot Physical Properties

Ruby

Peridot

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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

3.97-4.051.54-1.55

1 7.18

1.5 Fracture

Conchoidal

1.6 Cleavage

No true cleavage

Poor

1.7 Mohs Hardness

96.5-7

2 10

1.8 Chemical Composition

Al ₂ O ₃

(Mg,Fe)₂SiO₄

Ruby and Peridot Chemical Formula

While comparing Ruby and Peridot 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 Peridot chemical formula.

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

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Ruby and Peridot Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Peridot Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Peridot Optical Properties during the identification of gemstone. Specific gravity of Ruby is 1.54-1.55 whereas that of Peridot is 1.54-1.55.