Pectolite and Cordierite Physical Properties

Pectolite

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

2.74-2.902.57-2.66

1 7.18

1.5 Fracture

Uneven, Gemstones (2009), Splintery

Subconchoidal, Conchoidal, Brittle

1.6 Cleavage

Perfect on {100} and {001}

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

1.7 Mohs Hardness

4.5-57-7.5

2 10

1.8 Chemical Composition

Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.

Mg2Al4Si5O18

Pectolite and Cordierite Chemical Formula

While comparing Pectolite 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 Pectolite and Cordierite chemical formula.

Chemical formula of Pectolite- Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
Chemical formula of Cordierite- Mg2Al4Si5O18

Compare Colorless Gems

Pectolite Vs Pleonaste

Pectolite Vs Phosphophyllite

Pectolite Vs Phosphosiderite

Pectolite and Cordierite Specific Gravity

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