Pectolite and Iolite Physical Properties

Pectolite

Iolite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.74-2.902.6-2.7

1 7.18

1.5 Fracture

Uneven, Gemstones (2009), Splintery

Not Available

1.6 Cleavage

Perfect on {100} and {001}

3,1

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 Iolite Chemical Formula

While comparing Pectolite and 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 Pectolite and Iolite chemical formula.

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

Compare Colorless Gems

Pectolite Vs Phosphophyllite

Pectolite Vs Pleonaste

Pectolite Vs Phosphosiderite

Pectolite and Iolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pectolite and Iolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pectolite and Iolite Optical Properties during the identification of gemstone. Specific gravity of Pectolite is 2.6-2.7 whereas that of Iolite is 2.6-2.7.