Wulfenite and Sylvite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
6.50-7.00
  
1.993
  
Fracture
Irregular, Brittle, Conchoidal
  
Uneven, Brittle
  
Cleavage
On {011}, distinct; on {001}, {013}, indistinct
  
Perfect on [100], [010], [001]
  
Mohs Hardness
3
  
2.5
  
Chemical Composition
PbMoO 4Walter Schumann , Gemstones of the world (2001)
  
Not Available
  
Wulfenite and Sylvite Chemical Formula
While comparing Wulfenite and Sylvite 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 Sylvite chemical formula.
- Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)
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Wulfenite and Sylvite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Wulfenite and Sylvite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wulfenite and Sylvite Optical Properties during the identification of gemstone. Specific gravity of Wulfenite is 1.993 whereas that of Sylvite is 1.993.