Howlite and Manganotantalite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.45-2.58
Not Available
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
None
Not Available
Mohs Hardness
3-3.5
5.5-6.5
Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
MnTa 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Howlite and Manganotantalite Chemical Formula
While comparing Howlite and Manganotantalite 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 Howlite and Manganotantalite chemical formula.
- Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Manganotantalite- MnTa 2O 6Walter Schumann , Gemstones of the world (2001) More from other references
Howlite and Manganotantalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Howlite and Manganotantalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Howlite and Manganotantalite Optical Properties during the identification of gemstone. Specific gravity of Howlite is Not Available whereas that of Manganotantalite is Not Available.