Cuprite and Sapphire Physical Properties

Cuprite

Sapphire

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.3 Solubility

Not Available

insoluble

1.5 Durability

Not Available

1.6 Specific Gravity

5.85-6.153.95-4.03

1 7.18

1.7 Fracture

Conchoidal, Metallic, UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

Uneven, Uneven, Gems, Sixth Edition (2006)

1.8 Cleavage

Fair in four directions forming octahedrons

None, but may exhibit parting

1.9 Mohs Hardness

3.5-49

2 10

1.12 Chemical Composition

Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Al ₂ O ₃

Cuprite and Sapphire Chemical Formula

While comparing Cuprite and Sapphire 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 Cuprite and Sapphire chemical formula.

Chemical formula of Cuprite- Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Sapphire- Al ₂ O ₃

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Cuprite and Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cuprite and Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cuprite and Sapphire Optical Properties during the identification of gemstone. Specific gravity of Cuprite is 3.95-4.03 whereas that of Sapphire is 3.95-4.03.