Brucite and Nepheline Physical Properties

Brucite

Nepheline

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1 Physical Properties

1.1 Tenacity

Sectile

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.392.55-2.65

1 7.18

1.5 Fracture

Irregular

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

1.6 Cleavage

Perfect on {0001}

[1010] Poor

1.7 Mohs Hardness

2.55-6

2 10

1.8 Chemical Composition

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

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

Brucite and Nepheline Chemical Formula

While comparing Brucite 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 Brucite and Nepheline chemical formula.

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

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Brucite and Nepheline Specific Gravity

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