Star Sapphire and Bornite Physical Properties

Star Sapphire

Bornite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.90-4.055.06-5.08

1 7.18

1.5 Fracture

Not Available

Uneven, Subconchoidal, Conchoidal, Brittle

1.6 Cleavage

Not Available

Poor on [111].

1.7 Mohs Hardness

Not Available3-3.25

2 10

1.8 Chemical Composition

Al 2O 3Ulrich Henn and Claudio C.

Cu5FeS4

Star Sapphire and Bornite Chemical Formula

While comparing Star Sapphire 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 Star Sapphire and Bornite chemical formula.

Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.
Chemical formula of Bornite- Cu5FeS4

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Star Sapphire and Bornite Specific Gravity

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