Jade and Cordierite Physical Properties

Jade

Cordierite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.90-3.382.57-2.66

1 7.18

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Fracture

Splintery

Subconchoidal, Conchoidal

Cleavage

1 or 2,2 prismatic.

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

Mohs Hardness

6-77-7.5

2 10

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Chemical Composition

Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆

Mg2Al4Si5O18

Jade and Cordierite Chemical Formula

While comparing Jade 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 Jade and Cordierite chemical formula.

Chemical formula of Jade- Nephrite: Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ Jadeite: NaAlSi₂O₆
Chemical formula of Cordierite- Mg2Al4Si5O18

Compare Semi Precious Gemstones

Jade Vs Pyrope Spessartine

Jade Vs Rhodolite

Jade Vs Rubellite

Jade and Cordierite Specific Gravity

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