Rutile and Howlite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Insoluble in acids
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.20-4.30
2.45-2.58
Fracture
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
{110} good, 100 moderate, parting on {092} and {011}
None
Mohs Hardness
6-6.5
3-3.5
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Rutile and Howlite Chemical Formula
While comparing Rutile 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 Rutile and Howlite chemical formula.
- Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Rutile and Howlite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Rutile and Howlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rutile and Howlite Optical Properties during the identification of gemstone. Specific gravity of Rutile is 2.45-2.58 whereas that of Howlite is 2.45-2.58.