Sapphire and Verdite Physical Properties

Sapphire

Verdite

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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

3.95-4.032.80-3.0

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Not Available

1.6 Cleavage

None, but may exhibit parting

{110} Good

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

Al ₂ O ₃

NaFeS2•2(H2O)

Sapphire and Verdite Chemical Formula

While comparing Sapphire and Verdite 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 Verdite chemical formula.

Chemical formula of Sapphire- Al ₂ O ₃
Chemical formula of Verdite- NaFeS2•2(H2O)

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Sapphire and Verdite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Verdite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Verdite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 2.80-3.0 whereas that of Verdite is 2.80-3.0.