Neptunite and Rosasite Physical Properties

Neptunite

Rosasite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Effervesces in cold

1.3 Durability

Not Available

1.4 Specific Gravity

3.19-3.234-4.2

1 7.18

1.5 Fracture

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

Splintery

1.6 Cleavage

{110} good

Perfect on {100} and {010}

1.7 Mohs Hardness

5-64

2 10

1.8 Chemical Composition

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

Not Available

Neptunite and Rosasite Chemical Formula

While comparing Neptunite and Rosasite 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 Neptunite and Rosasite chemical formula.

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

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Neptunite and Rosasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Neptunite and Rosasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Neptunite and Rosasite Optical Properties during the identification of gemstone. Specific gravity of Neptunite is 4-4.2 whereas that of Rosasite is 4-4.2.