Nepheline and Almandine Physical Properties

Nepheline

Almandine

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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

2.55-2.653.95-4.30

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

[1010] Poor

none

1.7 Mohs Hardness

5-67-7.5

2 10

1.8 Chemical Composition

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

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

Nepheline and Almandine Chemical Formula

While comparing Nepheline and Almandine 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 Nepheline and Almandine chemical formula.

Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Nepheline and Almandine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nepheline and Almandine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepheline and Almandine Optical Properties during the identification of gemstone. Specific gravity of Nepheline is 3.95-4.30 whereas that of Almandine is 3.95-4.30.