Painite and Howlite Physical Properties

Painite and Howlite Chemical Formula

While comparing Painite 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 Painite and Howlite chemical formula.

• Chemical formula of Painite- CaZrBAl 9O 18Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
• Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Painite and Howlite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Painite and Howlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Painite and Howlite Optical Properties during the identification of gemstone. Specific gravity of Painite is 2.45-2.58 whereas that of Howlite is 2.45-2.58.