Sardonyx and Cordierite Iolite Physical Properties

Sardonyx

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

2.55-2.702.56-2.66

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

1.7 Mohs Hardness

6.5-77-7.5

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

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

Sardonyx and Cordierite Iolite Chemical Formula

While comparing Sardonyx 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 Sardonyx and Cordierite Iolite chemical formula.

Chemical formula of Sardonyx- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Cordierite Iolite- Mg 2Al 4Si 5O 18Ulrich Henn and Claudio C.

Compare Blue Gemstones

Sardonyx Vs Spinel

Sardonyx Vs Sodalite

Sardonyx Vs Star Ruby

Sardonyx and Cordierite Iolite Specific Gravity

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