Sapphire and Phenakite Physical Properties

Sapphire

Phenakite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.032.90-2.98

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle

1.6 Cleavage

None, but may exhibit parting

Distinct on {11 2 0}, imperfect on {10 1 1}

1.7 Mohs Hardness

97.5-8

2 10

1.8 Chemical Composition

Al ₂ O ₃

Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Sapphire and Phenakite Chemical Formula

While comparing Sapphire and Phenakite 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 Phenakite chemical formula.

Chemical formula of Sapphire- Al ₂ O ₃
Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Sapphire and Phenakite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Phenakite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Phenakite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 2.90-2.98 whereas that of Phenakite is 2.90-2.98.