Nepheline and Bustamite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Partly soluble in HCl.
Durability
Not Available
Not Available
Specific Gravity
2.55-2.65
3.32-3.43
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
[1010] Poor
{100} perfect; {110} and {1 1 0} good; {010} poor
Chemical Composition
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
(Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Nepheline and Bustamite Chemical Formula
While comparing Nepheline and Bustamite 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 Bustamite chemical formula.
- Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
- Chemical formula of Bustamite- (Ca,Mn2+ )Si 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Nepheline and Bustamite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Nepheline and Bustamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepheline and Bustamite Optical Properties during the identification of gemstone. Specific gravity of Nepheline is 3.32-3.43 whereas that of Bustamite is 3.32-3.43.