Nepheline and Hemimorphite Physical Properties

Nepheline

Hemimorphite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.55-2.653.30-3.50

1 7.18

1.5 Fracture

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

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

1.6 Cleavage

[1010] Poor

Perfect on {110}, poor on {101}, {001} rare

1.7 Mohs Hardness

5-65

2 10

1.8 Chemical Composition

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

Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Nepheline and Hemimorphite Chemical Formula

While comparing Nepheline and Hemimorphite 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 Hemimorphite chemical formula.

Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Chemical formula of Hemimorphite- Zn 4Si 2O 7(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Nepheline and Hemimorphite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nepheline and Hemimorphite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepheline and Hemimorphite Optical Properties during the identification of gemstone. Specific gravity of Nepheline is 3.30-3.50 whereas that of Hemimorphite is 3.30-3.50.