Neptunite and Pyrope Spessartine Physical Properties

Neptunite

Pyrope Spessartine

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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

3.19-3.233.62-4.33

1 7.18

1.5 Fracture

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

Uneven, Uneven, ConchoidalGemdat.org, Management Team (2012)

1.6 Cleavage

{110} good

Not Available

1.7 Mohs Hardness

5-67-7.5

2 10

1.8 Chemical Composition

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

Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Neptunite and Pyrope Spessartine Chemical Formula

While comparing Neptunite and Pyrope Spessartine 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 Pyrope Spessartine chemical formula.

Chemical formula of Neptunite- KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Pyrope Spessartine- Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Neptunite Vs Pyrope Spessartine

Neptunite Vs Pyrope

Neptunite and Pyrope Spessartine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Neptunite and Pyrope Spessartine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Neptunite and Pyrope Spessartine Optical Properties during the identification of gemstone. Specific gravity of Neptunite is 3.62-4.33 whereas that of Pyrope Spessartine is 3.62-4.33.