Pyrope Almandine and Cordierite Iolite Physical Properties

Pyrope Almandine

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

3.62-4.202.56-2.66

1 7.18

1.5 Fracture

ConchoidalGemdat.org, Management Team (2012), ConchoidalGemdat.org, Management Team (2012)

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

(Fe,Mg) 3Al 2(SiO 4) 3gemdat.org , Management Team (2012)

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

Pyrope Almandine and Cordierite Iolite Chemical Formula

While comparing Pyrope Almandine 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 Pyrope Almandine and Cordierite Iolite chemical formula.

Chemical formula of Pyrope Almandine- (Fe,Mg) 3Al 2(SiO 4) 3gemdat.org , Management Team (2012)
Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

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Pyrope Almandine and Cordierite Iolite Specific Gravity

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