Hexagonite and Cordierite Iolite Physical Properties

Hexagonite

Cordierite Iolite

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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

2.98-3.032.56-2.66

1 7.18

1.5 Fracture

Uneven

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

[110] perfect; [010] distinct

Not Available

1.7 Mohs Hardness

5-67-7.5

2 10

1.8 Chemical Composition

Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

Hexagonite and Cordierite Iolite Chemical Formula

While comparing Hexagonite and Cordierite Iolite 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 Hexagonite and Cordierite Iolite chemical formula.

Chemical formula of Hexagonite- Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.
Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

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Hexagonite and Cordierite Iolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hexagonite and Cordierite Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hexagonite and Cordierite Iolite Optical Properties during the identification of gemstone. Specific gravity of Hexagonite is 2.56-2.66 whereas that of Cordierite Iolite is 2.56-2.66.