Andradite Garnet and Neptunite Physical Properties

Andradite Garnet

Neptunite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.8-3.93.19-3.23

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

None

{110} good

1.7 Mohs Hardness

6.5-7.55-6

2 10

1.8 Chemical Composition

Ca₃Fe³⁺₂Si₃O₁₂

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

Andradite Garnet and Neptunite Chemical Formula

While comparing Andradite Garnet and Neptunite 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 Andradite Garnet and Neptunite chemical formula.

Chemical formula of Andradite Garnet- Ca₃Fe³⁺₂Si₃O₁₂
Chemical formula of Neptunite- KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)

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Andradite Garnet and Neptunite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Andradite Garnet and Neptunite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andradite Garnet and Neptunite Optical Properties during the identification of gemstone. Specific gravity of Andradite Garnet is 3.19-3.23 whereas that of Neptunite is 3.19-3.23.