Kunzite and Neptunite Physical Properties

Kunzite

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

3.15-3.21

3.19-3.23

1.5 Fracture

Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)

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

1.6 Cleavage

1,2 prismatic

{110} good

1.7 Mohs Hardness

6-7

5-6

1.8 Chemical Composition

LiAlSi₂O₆

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

Kunzite and Neptunite Chemical Formula

While comparing Kunzite 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 Kunzite and Neptunite chemical formula.

Chemical formula of Kunzite- LiAlSi₂O₆
Chemical formula of Neptunite- KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)

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Kunzite and Neptunite Specific Gravity

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