Hauyne and Howlite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Gelatinises in acids
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.4-2.5
2.45-2.58
Fracture
Uneven, Conchoidal, Brittle
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
Distinct on {110}
None
Chemical Composition
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Hauyne and Howlite Chemical Formula
While comparing Hauyne 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 Hauyne and Howlite chemical formula.
- Chemical formula of Hauyne- (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
- Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Hauyne and Howlite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hauyne and Howlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hauyne and Howlite Optical Properties during the identification of gemstone. Specific gravity of Hauyne is 2.45-2.58 whereas that of Howlite is 2.45-2.58.