Diaspore and Cordierite Iolite Physical Properties

Diaspore

Cordierite Iolite

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1 Physical Properties

1.1 Tenacity

Very brittle

Not Available

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.30-3.402.56-2.66

1 7.18

1.5 Fracture

Conchoidal, Brittle, Conchoidal

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

1.6 Cleavage

{010} perfect, {110} distinct, {100} in traces

Not Available

1.7 Mohs Hardness

6.5-77-7.5

2 10

1.8 Chemical Composition

AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

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

Diaspore and Cordierite Iolite Chemical Formula

While comparing Diaspore 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 Diaspore and Cordierite Iolite chemical formula.

Chemical formula of Diaspore- AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

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Diaspore and Cordierite Iolite Specific Gravity

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