Periclase and Nepheline Physical Properties

Periclase

Nepheline

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.7-3.92.55-2.65

1 7.18

1.5 Fracture

Conchoidal, Brittle

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

1.6 Cleavage

{001} perfect; {111} imperfect, may exhibit parting on , {011}

[1010] Poor

1.7 Mohs Hardness

5.5-65-6

2 10

1.8 Chemical Composition

MgOMichael OâDonoghue , Gems, Sixth Edition (2006)

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

Periclase and Nepheline Chemical Formula

While comparing Periclase 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 Periclase and Nepheline chemical formula.

Chemical formula of Periclase- MgOMichael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.

Compare Gems Found In Australia

Periclase Vs Scheelite

Periclase Vs Sapphire

Periclase Vs Rinkite Ce

Periclase and Nepheline Specific Gravity

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