Cordierite and Rutilated Quartz Physical Properties

Cordierite

Rutilated Quartz

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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

2.57-2.662.65

1 7.18

1.5 Fracture

Subconchoidal, Conchoidal, Brittle

Gems, Sixth Edition (2006)

1.6 Cleavage

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

Indiscernible

1.7 Mohs Hardness

7-7.57

2 10

1.8 Chemical Composition

Mg2Al4Si5O18

Quartz: SiO₂ Rutile: TiO2

Cordierite and Rutilated Quartz Chemical Formula

While comparing Cordierite and Rutilated Quartz 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 Rutilated Quartz chemical formula.

Chemical formula of Cordierite- Mg2Al4Si5O18
Chemical formula of Rutilated Quartz- Quartz: SiO₂ Rutile: TiO2

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Cordierite and Rutilated Quartz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite and Rutilated Quartz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Rutilated Quartz Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 2.65 whereas that of Rutilated Quartz is 2.65.