Sapphire and Sunstone Physical Properties

Sapphire

Sunstone

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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

3.95-4.032.62-2.65

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Gemstones of the world (2001)

1.6 Cleavage

None, but may exhibit parting

001

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

Al ₂ O ₃

Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

Sapphire and Sunstone Chemical Formula

While comparing Sapphire and Sunstone 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 Sunstone chemical formula.

Chemical formula of Sapphire- Al ₂ O ₃
Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

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Sapphire and Sunstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Sunstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Sunstone Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 2.62-2.65 whereas that of Sunstone is 2.62-2.65.