Almandine and Cordierite Iolite Physical Properties

Almandine

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

3.95-4.30

2.56-2.66

1.5 Fracture

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

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

1.6 Cleavage

none

Not Available

1.7 Mohs Hardness

7-7.5

1.8 Chemical Composition

Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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

Almandine and Cordierite Iolite Chemical Formula

While comparing 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 Almandine and Cordierite Iolite chemical formula.

Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

Compare Red Gemstones

Almandine Vs Baryte Barite

Almandine Vs Black Opal

Almandine Vs Aragonite

Almandine and Cordierite Iolite Specific Gravity

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