Corundum and Beryl Physical Properties

Corundum

Beryl

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.90-4.05

2.60-2.90

1.5 Fracture

Uneven, Uneven, Gems, Difficult, Fibrous

Uneven, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Uneven, Gems, Brittle

1.6 Cleavage

None – parting in 3 directions

Imperfect on {0001}

1.7 Mohs Hardness

7.5-8

1.8 Chemical Composition

Al 2O 3Arthur Thomas , Gemstones (2009)

Be₃Al₂Si₆O₁₈

Corundum and Beryl Chemical Formula

While comparing Corundum and Beryl 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 Corundum and Beryl chemical formula.

Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)
Chemical formula of Beryl- Be₃Al₂Si₆O₁₈

Compare Violet Gemstones

Corundum Vs Hexagonite

Corundum Vs Garnet

Corundum Vs Hackmanite

Corundum and Beryl Specific Gravity

Another important criteria for qualitative analysis of gemstones is Corundum and Beryl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Corundum and Beryl Optical Properties during the identification of gemstone. Specific gravity of Corundum is 2.60-2.90 whereas that of Beryl is 2.60-2.90.

Violet Gemstones

Dravite

Dumortierite

Fluorapatite

Foitite

Garnet

Hackmanite