Cordierite and Rubellite Tourmaline Physical Properties

Cordierite

Rubellite Tourmaline

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.57-2.66Not Available

1 7.18

1.5 Fracture

Subconchoidal, Conchoidal, Brittle

Not Available

1.6 Cleavage

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

None

1.7 Mohs Hardness

7-7.52.5-3

2 10

1.8 Chemical Composition

Mg2Al4Si5O18

Cordierite and Rubellite Tourmaline Chemical Formula

While comparing Cordierite and Rubellite Tourmaline 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 Rubellite Tourmaline chemical formula.

Chemical formula of Cordierite- Mg2Al4Si5O18
Chemical formula of Rubellite Tourmaline- Ag

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Cordierite and Rubellite Tourmaline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite and Rubellite Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Rubellite Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Cordierite is Not Available whereas that of Rubellite Tourmaline is Not Available.