Orthoclase and Nepheline Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.54-2.61
2.55-2.65
Fracture
Gems, Uneven
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Has perfect cleavage on {001} and good cleavage on {010}. Cleavages intersect at 90°.
[1010] Poor
Chemical Composition
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Orthoclase and Nepheline Chemical Formula
While comparing Orthoclase 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 Orthoclase and Nepheline chemical formula.
- Chemical formula of Orthoclase- KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Orthoclase and Nepheline Specific Gravity
Another important criteria for qualitative analysis of gemstones is Orthoclase and Nepheline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Orthoclase and Nepheline Optical Properties during the identification of gemstone. Specific gravity of Orthoclase is 2.55-2.65 whereas that of Nepheline is 2.55-2.65.