Wulfenite and Howlite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
6.50-7.00
2.45-2.58
Fracture
Irregular, Brittle, Conchoidal
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
On {011}, distinct; on {001}, {013}, indistinct
None
Chemical Composition
PbMoO 4Walter Schumann , Gemstones of the world (2001)
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Wulfenite and Howlite Chemical Formula
While comparing Wulfenite and Howlite 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 Howlite chemical formula.
- Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)
- Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Wulfenite and Howlite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Wulfenite and Howlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wulfenite and Howlite Optical Properties during the identification of gemstone. Specific gravity of Wulfenite is 2.45-2.58 whereas that of Howlite is 2.45-2.58.