Periclase and Cordierite Physical Properties

Periclase

Cordierite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.7-3.92.57-2.66

1 7.18

1.5 Fracture

Conchoidal, Brittle

Subconchoidal, Conchoidal, Brittle

1.6 Cleavage

{001} perfect; {111} imperfect, may exhibit parting on , {011}

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

1.7 Mohs Hardness

5.5-67-7.5

2 10

1.8 Chemical Composition

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

Mg2Al4Si5O18

Periclase and Cordierite Chemical Formula

While comparing Periclase 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 Periclase and Cordierite chemical formula.

Chemical formula of Periclase- MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Cordierite- Mg2Al4Si5O18

Compare Gems Found In Australia

Periclase Vs Sapphire

Periclase Vs Rinkite Ce

Periclase Vs Scheelite

Periclase and Cordierite Specific Gravity

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