Neptunite and Covellite Physical Properties

Neptunite

Covellite

Add ⊕

1 Physical Properties

1.1 Tenacity

Brittle

Flexible

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.19-3.234.6-4.76

1 7.18

1.5 Fracture

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

Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic

1.6 Cleavage

{110} good

Perfect on {0001}

1.7 Mohs Hardness

5-6Not Available

2 10

1.8 Chemical Composition

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

CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references

Neptunite and Covellite Chemical Formula

While comparing Neptunite and Covellite 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 Covellite chemical formula.

Chemical formula of Neptunite- KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Covellite- CuSMichael OâDonoghue , Gems, Sixth edition (2006) More from other references

Compare Red Gemstones

Neptunite Vs Pyrope Spessartine

Neptunite Vs Pyroxmangite

Neptunite Vs Pyrope

Neptunite and Covellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Neptunite and Covellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Neptunite and Covellite Optical Properties during the identification of gemstone. Specific gravity of Neptunite is 4.6-4.76 whereas that of Covellite is 4.6-4.76.