Pectolite and Neptunite Physical Properties

Pectolite

Neptunite

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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

2.74-2.903.19-3.23

1 7.18

1.5 Fracture

Uneven, Gemstones (2009), Splintery

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

1.6 Cleavage

Perfect on {100} and {001}

{110} good

1.7 Mohs Hardness

4.5-55-6

2 10

1.8 Chemical Composition

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

KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)

Pectolite and Neptunite Chemical Formula

While comparing Pectolite and Neptunite 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 Neptunite chemical formula.

Chemical formula of Pectolite- Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.
Chemical formula of Neptunite- KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Colorless Gems

Pectolite Vs Phosphosiderite

Pectolite Vs Pleonaste

Pectolite Vs Phosphophyllite

Pectolite and Neptunite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pectolite and Neptunite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pectolite and Neptunite Optical Properties during the identification of gemstone. Specific gravity of Pectolite is 3.19-3.23 whereas that of Neptunite is 3.19-3.23.