Jadeite and Howlite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.28-3.38
2.45-2.58
Fracture
Splintery, UnevenArthur Thomas, Difficult, Fibrous
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Good on [110]
None
Mohs Hardness
6.5-7
3-3.5
Chemical Composition
NaAlSi 2O 6Ulrich Henn and Claudio C.
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Jadeite and Howlite Chemical Formula
While comparing Jadeite 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 Jadeite and Howlite chemical formula.
- Chemical formula of Jadeite- NaAlSi 2O 6Ulrich Henn and Claudio C.
- Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Jadeite and Howlite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Jadeite and Howlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jadeite and Howlite Optical Properties during the identification of gemstone. Specific gravity of Jadeite is 2.45-2.58 whereas that of Howlite is 2.45-2.58.