Kashmir sapphire and Neptunite Physical Properties

Kashmir sapphire

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

Not Available3.19-3.23

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

Not Available5-6

2 10

1.8 Chemical Composition

Not Available

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

Kashmir sapphire and Neptunite Chemical Formula

While comparing Kashmir sapphire 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 Kashmir sapphire and Neptunite chemical formula.

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

Compare Blue Gemstones

Kashmir sapphire Vs Mystic topaz

Kashmir sapphire Vs dendritic agate

Kashmir sapphire Vs Grossular Garnet

Kashmir sapphire and Neptunite Specific Gravity

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