Realgar and Howlite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.56
  
2.45-2.58
  
Fracture
(e.g. graphite).
  
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
  
Cleavage
{010} Good
  
None
  
Mohs Hardness
Not Available
  
3-3.5
  
Chemical Composition
AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
  
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Realgar and Howlite Chemical Formula
While comparing Realgar 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 Realgar and Howlite chemical formula.
- Chemical formula of Realgar- AsSMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Realgar and Howlite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Realgar and Howlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Realgar and Howlite Optical Properties during the identification of gemstone. Specific gravity of Realgar is 2.45-2.58 whereas that of Howlite is 2.45-2.58.