Hanksite and Black Opal Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Readily soluble in water
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.562
  
1.97-2.22
  
Fracture
Uneven, Conchoidal, Brittle
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Good on {0001}
  
Not Available
  
Mohs Hardness
3-3.5
  
6-6.5
  
Chemical Composition
KNa22(SO4)9(CO3)2Cl
  
SiO 2 + H 2OUlrich Henn and Claudio C.
  
Hanksite and Black Opal Chemical Formula
While comparing Hanksite and Black Opal 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 Hanksite and Black Opal chemical formula.
- Chemical formula of Hanksite- KNa22(SO4)9(CO3)2Cl
- Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
Hanksite and Black Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hanksite and Black Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hanksite and Black Opal Optical Properties during the identification of gemstone. Specific gravity of Hanksite is 1.97-2.22 whereas that of Black Opal is 1.97-2.22.