Goshenite and Neptunite Physical Properties

Goshenite

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

2.60-2.90

3.19-3.23

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

3,1 basal

{110} good

1.7 Mohs Hardness

7.5-8

5-6

1.8 Chemical Composition

Be₃Al₂SiO₆

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

Goshenite and Neptunite Chemical Formula

While comparing Goshenite 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 Goshenite and Neptunite chemical formula.

Chemical formula of Goshenite- Be₃Al₂SiO₆
Chemical formula of Neptunite- KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)

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Goshenite and Neptunite Specific Gravity

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