Ruby and Bornite Physical Properties

Ruby

Bornite

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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

3.97-4.055.06-5.08

1 7.18

1.5 Fracture

Conchoidal

Uneven, Subconchoidal, Conchoidal, Brittle

1.6 Cleavage

No true cleavage

Poor on [111].

1.7 Mohs Hardness

93-3.25

2 10

1.8 Chemical Composition

Al ₂ O ₃

Cu5FeS4

Ruby and Bornite Chemical Formula

While comparing Ruby and Bornite 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 Bornite chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Bornite- Cu5FeS4

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Ruby and Bornite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Bornite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Bornite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 5.06-5.08 whereas that of Bornite is 5.06-5.08.