Cordierite and Beryl Physical Properties

Cordierite

Beryl

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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

2.57-2.66

2.60-2.90

1.5 Fracture

Subconchoidal, Conchoidal, Brittle

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

Fair on {100}, poor on {001} and {010}

Imperfect on {0001}

1.7 Mohs Hardness

7-7.5

7.5-8

1.8 Chemical Composition

Mg2Al4Si5O18

Be₃Al₂Si₆O₁₈

Cordierite and Beryl Chemical Formula

While comparing Cordierite 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 Cordierite and Beryl chemical formula.

Chemical formula of Cordierite- Mg2Al4Si5O18
Chemical formula of Beryl- Be₃Al₂Si₆O₁₈

Compare Blue Gemstones

Cordierite Vs Rosasite

Cordierite Vs Plumbogummite

Cordierite Vs Riebeckite

Cordierite and Beryl Specific Gravity

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

Blue Gemstones

Glaucophane

Hauyne

Kainite

Lawsonite

Plumbogummite

Riebeckite