Pectolite and Pargasite Physical Properties

Pectolite

Pargasite

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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

2.74-2.903.04-3.26

1 7.18

1.5 Fracture

Uneven, Gemstones (2009), Splintery

Splintery, Brittle, Uneven

1.6 Cleavage

Perfect on {100} and {001}

{110} perfect

1.7 Mohs Hardness

4.5-55-6

2 10

1.8 Chemical Composition

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

NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Pectolite and Pargasite Chemical Formula

While comparing Pectolite and Pargasite 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 Pargasite chemical formula.

Chemical formula of Pectolite- Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Colorless Gems

Pectolite Vs Phosphosiderite

Pectolite Vs Pleonaste

Pectolite Vs Phosphophyllite

Pectolite and Pargasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pectolite and Pargasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pectolite and Pargasite Optical Properties during the identification of gemstone. Specific gravity of Pectolite is 3.04-3.26 whereas that of Pargasite is 3.04-3.26.