Wood Opal and Cordierite Physical Properties

Wood Opal

Cordierite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.98-2.502.57-2.66

1 7.18

1.5 Fracture

Not Available

Subconchoidal, Conchoidal, Brittle

1.6 Cleavage

Not Available

Fair on {100}, poor on {001} and {010}

1.7 Mohs Hardness

5.5-6.57-7.5

2 10

1.8 Chemical Composition

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Mg2Al4Si5O18

Wood Opal and Cordierite Chemical Formula

While comparing Wood Opal and Cordierite 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 Wood Opal and Cordierite chemical formula.

Chemical formula of Wood Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Chemical formula of Cordierite- Mg2Al4Si5O18

Compare Gems Found In Australia

Wood Opal Vs Alunite

Wood Opal Vs Druzy

Wood Opal Vs Canadian Ammolite

Wood Opal and Cordierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Wood Opal and Cordierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wood Opal and Cordierite Optical Properties during the identification of gemstone. Specific gravity of Wood Opal is 2.57-2.66 whereas that of Cordierite is 2.57-2.66.