Nepheline and Wulfenite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.65
6.50-7.00
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Irregular, Brittle, Conchoidal
Cleavage
[1010] Poor
On {011}, distinct; on {001}, {013}, indistinct
Chemical Composition
Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
PbMoO 4Walter Schumann , Gemstones of the world (2001)
Nepheline and Wulfenite Chemical Formula
While comparing Nepheline and Wulfenite 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 Wulfenite chemical formula.
- Chemical formula of Nepheline- Na 3(Na,K)Al 4Si 4O 16Ulrich Henn and Claudio C.
- Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)
Nepheline and Wulfenite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Nepheline and Wulfenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepheline and Wulfenite Optical Properties during the identification of gemstone. Specific gravity of Nepheline is 6.50-7.00 whereas that of Wulfenite is 6.50-7.00.