Glaucophane and Cordierite Physical Properties

Glaucophane

Cordierite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3-3.152.57-2.66

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

Subconchoidal, Conchoidal, Brittle

1.6 Cleavage

Good on [110] and on [001]

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

1.7 Mohs Hardness

6.0-6.57-7.5

2 10

1.8 Chemical Composition

[ ]Na2(Mg3Al2)Si8O22(OH)2

Mg2Al4Si5O18

Glaucophane and Cordierite Chemical Formula

While comparing Glaucophane and Cordierite 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 Glaucophane and Cordierite chemical formula.

Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
Chemical formula of Cordierite- Mg2Al4Si5O18

Compare Blue Gemstones

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Glaucophane and Cordierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Glaucophane and Cordierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Glaucophane and Cordierite Optical Properties during the identification of gemstone. Specific gravity of Glaucophane is 2.57-2.66 whereas that of Cordierite is 2.57-2.66.