Rutile and Nepheline Physical Properties
Tenacity
Not Available
Not Available
Solubility
Insoluble in acids
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.20-4.30
2.55-2.65
Fracture
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
{110} good, 100 moderate, parting on {092} and {011}
[1010] Poor
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Rutile and Nepheline Chemical Formula
While comparing Rutile 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 Rutile and Nepheline chemical formula.
- Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
Rutile and Nepheline Specific Gravity
Another important criteria for qualitative analysis of gemstones is Rutile and Nepheline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rutile and Nepheline Optical Properties during the identification of gemstone. Specific gravity of Rutile is 2.55-2.65 whereas that of Nepheline is 2.55-2.65.