Pectolite and Anorthite Physical Properties

Pectolite

Anorthite

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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

2.74-2.902.77

1 7.18

1.5 Fracture

Uneven, Gemstones (2009), Splintery

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

Perfect on {100} and {001}

Perfect [001] good [010] poor [110]

1.7 Mohs Hardness

4.5-56-6.5

2 10

1.8 Chemical Composition

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

CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Pectolite and Anorthite Chemical Formula

While comparing Pectolite and Anorthite 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 Anorthite chemical formula.

Chemical formula of Pectolite- Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Colorless Gems

Pectolite Vs Pleonaste

Pectolite Vs Phosphosiderite

Pectolite Vs Phosphophyllite

Pectolite and Anorthite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pectolite and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pectolite and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Pectolite is 2.77 whereas that of Anorthite is 2.77.