Periclase and Nepheline Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.7-3.9
2.55-2.65
Fracture
Conchoidal, Brittle
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
{001} perfect; {111} imperfect, may exhibit parting on , {011}
[1010] Poor
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.
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.