Sapphire and Orthoclase Physical Properties

Sapphire

Orthoclase

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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

3.95-4.032.54-2.61

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Gems, Uneven

1.6 Cleavage

None, but may exhibit parting

Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

Al ₂ O ₃

KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Sapphire and Orthoclase Chemical Formula

While comparing Sapphire and Orthoclase 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 Orthoclase chemical formula.

Chemical formula of Sapphire- Al ₂ O ₃
Chemical formula of Orthoclase- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Sapphire and Orthoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Orthoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Orthoclase Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 2.54-2.61 whereas that of Orthoclase is 2.54-2.61.