Zircon and Howlite Physical Properties
Tenacity
Brittle
Not Available
Solubility
insoluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.93-4.73
2.45-2.58
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
{110} and {111}
None
Chemical Composition
ZrSiO4
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Zircon and Howlite Chemical Formula
While comparing Zircon 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 Zircon and Howlite chemical formula.
- Chemical formula of Zircon- ZrSiO4
- Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Zircon and Howlite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Zircon and Howlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zircon and Howlite Optical Properties during the identification of gemstone. Specific gravity of Zircon is 2.45-2.58 whereas that of Howlite is 2.45-2.58.