Cordierite and Fuchsite Physical Properties

Cordierite

Fuchsite

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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

2.57-2.662.77-2.88

1 7.18

1.5 Fracture

Subconchoidal, Conchoidal, Brittle

Uneven

1.6 Cleavage

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

Perfect basal

1.7 Mohs Hardness

7-7.52.5

2 10

1.8 Chemical Composition

Mg2Al4Si5O18

K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)

Cordierite and Fuchsite Chemical Formula

While comparing Cordierite and Fuchsite 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 Fuchsite chemical formula.

Chemical formula of Cordierite- Mg2Al4Si5O18
Chemical formula of Fuchsite- K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)

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Cordierite and Fuchsite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite and Fuchsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Fuchsite Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 2.77-2.88 whereas that of Fuchsite is 2.77-2.88.