Verdelite and Cordierite Iolite Physical Properties

Verdelite

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

2.90-3.402.56-2.66

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

Not Available

1.7 Mohs Hardness

7-7.57-7.5

2 10

1.8 Chemical Composition

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

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

Verdelite and Cordierite Iolite Chemical Formula

While comparing Verdelite 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 Verdelite and Cordierite Iolite chemical formula.

Chemical formula of Verdelite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

Compare Green Gemstones

Verdelite Vs White Opal

Verdelite Vs Watermelon Tourmaline

Verdelite Vs Wavellite

Verdelite and Cordierite Iolite Specific Gravity

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