Nepheline and Citrine Physical Properties

Nepheline

Citrine

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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

2.55-2.65

2.65

1.5 Fracture

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

ConchoidalMichael OâDonoghue, Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)

1.6 Cleavage

[1010] Poor

Indiscernible

1.7 Mohs Hardness

5-6

1.8 Chemical Composition

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

SiO₂

Nepheline and Citrine Chemical Formula

While comparing Nepheline and Citrine 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 Citrine chemical formula.

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

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Nepheline and Citrine Specific Gravity

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