Howlite and Chrysocolla Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.45-2.58
  
2.00-2.45
  
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
  
Sub-Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Cleavage
None
  
none
  
Mohs Hardness
3-3.5
  
2-4
  
Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Cu2H2Si2O5(OH)4
  
Howlite and Chrysocolla Chemical Formula
While comparing Howlite and Chrysocolla 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 Chrysocolla chemical formula.
- Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Chrysocolla- Cu2H2Si2O5(OH)4
Howlite and Chrysocolla Specific Gravity
Another important criteria for qualitative analysis of gemstones is Howlite and Chrysocolla Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Howlite and Chrysocolla Optical Properties during the identification of gemstone. Specific gravity of Howlite is 2.00-2.45 whereas that of Chrysocolla is 2.00-2.45.