Mellite and Nepheline Physical Properties

Mellite

Nepheline

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.58-1.602.55-2.65

1 7.18

1.5 Fracture

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

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

{011} Imperfect

[1010] Poor

1.7 Mohs Hardness

25-6

2 10

1.8 Chemical Composition

Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

Mellite and Nepheline Chemical Formula

While comparing Mellite and Nepheline 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 Mellite and Nepheline chemical formula.

Chemical formula of Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.
Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

Compare Brown Gemstones

Mellite Vs Morion

Mellite Vs Mother of Pearl

Mellite Vs Narsarsukite

Mellite and Nepheline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Mellite and Nepheline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mellite and Nepheline Optical Properties during the identification of gemstone. Specific gravity of Mellite is 2.55-2.65 whereas that of Nepheline is 2.55-2.65.