Sapphire and Peridot Physical Properties

Sapphire

Peridot

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.031.54-1.55

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Conchoidal

1.6 Cleavage

None, but may exhibit parting

Poor

1.7 Mohs Hardness

96.5-7

2 10

1.8 Chemical Composition

Al ₂ O ₃

(Mg,Fe)₂SiO₄

Sapphire and Peridot Chemical Formula

While comparing Sapphire 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 Sapphire and Peridot chemical formula.

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

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Sapphire and Peridot Specific Gravity

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