Ruby and Chalcopyrite Physical Properties

Ruby

Chalcopyrite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.97-4.054.1-4.3

1 7.18

1.5 Fracture

Conchoidal

Uneven, Brittle, Metallic

1.6 Cleavage

No true cleavage

Indistinct on {011}

1.7 Mohs Hardness

93.5-4

2 10

1.8 Chemical Composition

Al ₂ O ₃

CuFeS 2Anthony et al , Handbook of mineralogy (2001)

Ruby and Chalcopyrite Chemical Formula

While comparing Ruby and Chalcopyrite 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 Chalcopyrite chemical formula.

Chemical formula of Ruby- Al ₂ O ₃
Chemical formula of Chalcopyrite- CuFeS 2Anthony et al , Handbook of mineralogy (2001)

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Ruby and Chalcopyrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Chalcopyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Chalcopyrite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 4.1-4.3 whereas that of Chalcopyrite is 4.1-4.3.