Ruby and Zincite Physical Properties

Ruby

Zincite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.97-4.055.50-5.90

1 7.18

1.5 Fracture

Conchoidal

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

No true cleavage

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

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

Al ₂ O ₃

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

Ruby and Zincite Chemical Formula

While comparing Ruby and Zincite 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 Ruby and Zincite chemical formula.

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

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Ruby and Zincite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Zincite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Zincite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 5.50-5.90 whereas that of Zincite is 5.50-5.90.