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