Agate and Nepheline Physical Properties

Agate

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

2.60-2.64

2.55-2.65

1.5 Fracture

Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

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

1.6 Cleavage

Indiscernible

[1010] Poor

1.7 Mohs Hardness

6.5-7

5-6

1.8 Chemical Composition

SiO₂

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

Agate and Nepheline Chemical Formula

While comparing Agate 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 Agate and Nepheline chemical formula.

Chemical formula of Agate- SiO₂
Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

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Agate and Nepheline Specific Gravity

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