Andalusite and Cordierite Iolite Physical Properties

Andalusite

Cordierite Iolite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.05-3.212.56-2.66

1 7.18

1.5 Fracture

Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

Good on {110}, poor on {100}

Not Available

1.7 Mohs Hardness

7.57-7.5

2 10

1.8 Chemical Composition

Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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

Andalusite and Cordierite Iolite Chemical Formula

While comparing Andalusite 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 Andalusite and Cordierite Iolite chemical formula.

Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

Compare Brown Gemstones

Andalusite Vs Baddeleyite

Andalusite Vs Augite

Andalusite Vs Baryte Barite

Andalusite and Cordierite Iolite Specific Gravity

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