Oligoclase and Cordierite Iolite Physical Properties

Oligoclase

Cordierite Iolite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.62-2.672.56-2.66

1 7.18

1.5 Fracture

Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven

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

1.6 Cleavage

From the Greek, oligos and kasein, little cleavage.

Not Available

1.7 Mohs Hardness

6-6.57-7.5

2 10

1.8 Chemical Composition

Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Oligoclase and Cordierite Iolite Chemical Formula

While comparing Oligoclase 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 Oligoclase and Cordierite Iolite chemical formula.

Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

Compare Colorless Gems

Oligoclase Vs Pezzottaite

Oligoclase Vs Phenakite

Oligoclase Vs Phosphophyllite

Oligoclase and Cordierite Iolite Specific Gravity

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