Sapphire and Pyrophyllite Physical Properties

Sapphire

Pyrophyllite

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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

3.95-4.032.65-2.90

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Gemstones (2009), Flexible Flexible fragments.

1.6 Cleavage

None, but may exhibit parting

{001} Perfect

1.7 Mohs Hardness

9Not Available

2 10

1.8 Chemical Composition

Al ₂ O ₃

Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Sapphire and Pyrophyllite Chemical Formula

While comparing Sapphire and Pyrophyllite 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 Pyrophyllite chemical formula.

Chemical formula of Sapphire- Al ₂ O ₃
Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Sapphire and Pyrophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.