Cordierite Iolite and Diaspore Physical Properties

Cordierite Iolite

Diaspore

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1 Physical Properties

1.1 Tenacity

Not Available

Very brittle

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.56-2.663.30-3.40

1 7.18

1.5 Fracture

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

Conchoidal, Brittle, Conchoidal

1.6 Cleavage

Not Available

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

1.7 Mohs Hardness

7-7.56.5-7

2 10

1.8 Chemical Composition

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

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

Cordierite Iolite and Diaspore Chemical Formula

While comparing Cordierite Iolite and Diaspore 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 Diaspore chemical formula.

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

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Cordierite Iolite and Diaspore Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite Iolite and Diaspore Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite Iolite and Diaspore Optical Properties during the identification of gemstone. Specific gravity of Cordierite Iolite is 3.30-3.40 whereas that of Diaspore is 3.30-3.40.