Neptunite and Barite Physical Properties

Neptunite

Barite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.19-3.234.48

1 7.18

1.5 Fracture

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

Uneven

1.6 Cleavage

{110} good

{010} Perfect, {210} Perfect, {010} Imperfect

1.7 Mohs Hardness

5-63-3.5

2 10

1.8 Chemical Composition

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

BaSO4

Neptunite and Barite Chemical Formula

While comparing Neptunite and Barite 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 Barite chemical formula.

Chemical formula of Neptunite- KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Barite- BaSO4

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Neptunite and Barite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Neptunite and Barite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Neptunite and Barite Optical Properties during the identification of gemstone. Specific gravity of Neptunite is 4.48 whereas that of Barite is 4.48.