Neptunite and Stibiotantalite Physical Properties

Neptunite

Stibiotantalite

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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

3.19-3.23Not Available

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

{110} good

{???} Perfect

1.7 Mohs Hardness

5-65.5-6

2 10

1.8 Chemical Composition

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

SbTaO 4Ulrich Henn and Claudio C.

Neptunite and Stibiotantalite Chemical Formula

While comparing Neptunite and Stibiotantalite 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 Stibiotantalite chemical formula.

Chemical formula of Neptunite- KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.

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Neptunite and Stibiotantalite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Neptunite and Stibiotantalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Neptunite and Stibiotantalite Optical Properties during the identification of gemstone. Specific gravity of Neptunite is Not Available whereas that of Stibiotantalite is Not Available.