Paraiba and Neptunite Physical Properties

Paraiba

Neptunite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.04-3.133.19-3.23

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

{110} good

1.7 Mohs Hardness

7-7.55-6

2 10

1.8 Chemical Composition

Not Available

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

Paraiba and Neptunite Chemical Formula

While comparing Paraiba 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 Paraiba and Neptunite chemical formula.

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

Compare Blue Gemstones

Paraiba Vs Ammolite

Paraiba Vs Andean Opal

Paraiba Vs Anatase

Paraiba and Neptunite Specific Gravity

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