Cordierite Iolite and Sunstone Physical Properties

Cordierite Iolite

Sunstone

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.56-2.662.62-2.65

1 7.18

1.5 Fracture

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

Gemstones of the world (2001)

1.6 Cleavage

Not Available

001

1.7 Mohs Hardness

7-7.56

2 10

1.8 Chemical Composition

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

Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

Cordierite Iolite and Sunstone Chemical Formula

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

Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.
Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

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Cordierite Iolite and Sunstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite Iolite and Sunstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite Iolite and Sunstone Optical Properties during the identification of gemstone. Specific gravity of Cordierite Iolite is 2.62-2.65 whereas that of Sunstone is 2.62-2.65.