Charlesite and Cordierite Iolite Physical Properties

Charlesite

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

1.792.56-2.66

1 7.18

1.5 Fracture

Irregular/uneven, Brittle, Metallic

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

1.6 Cleavage

Perfect on {10bar10}

Not Available

1.7 Mohs Hardness

2.57-7.5

2 10

1.8 Chemical Composition

Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)

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

Charlesite and Cordierite Iolite Chemical Formula

While comparing Charlesite 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 Charlesite and Cordierite Iolite chemical formula.

Chemical formula of Charlesite- Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O)
Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

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Charlesite and Cordierite Iolite Specific Gravity

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