Nepheline and Brucite Physical Properties

Nepheline

Brucite

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1 Physical Properties

1.1 Tenacity

Not Available

Sectile

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.652.39

1 7.18

1.5 Fracture

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

Irregular

1.6 Cleavage

[1010] Poor

Perfect on {0001}

1.7 Mohs Hardness

5-62.5

2 10

1.8 Chemical Composition

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

Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Nepheline and Brucite Chemical Formula

While comparing Nepheline and Brucite 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 Brucite chemical formula.

Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Chemical formula of Brucite- Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Nepheline and Brucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nepheline and Brucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepheline and Brucite Optical Properties during the identification of gemstone. Specific gravity of Nepheline is 2.39 whereas that of Brucite is 2.39.