Zincite and Sapphire Physical Properties

Zincite

Sapphire

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

5.50-5.903.95-4.03

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

On {10 1 0}, perfect; parting on {000 1 }

None, but may exhibit parting

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)

Al ₂ O ₃

Zincite and Sapphire Chemical Formula

While comparing Zincite 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 Zincite and Sapphire chemical formula.

Chemical formula of Zincite- (Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Sapphire- Al ₂ O ₃

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Zincite and Sapphire Specific Gravity

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