Inderite and Black Opal Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
1.79
  
1.97-2.22
  
Fracture
Uneven
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
{110} Good
  
Not Available
  
Mohs Hardness
2.5
  
6-6.5
  
Chemical Composition
MgB 3O 3(OH) 5 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
  
SiO 2 + H 2OUlrich Henn and Claudio C.
  
Inderite and Black Opal Chemical Formula
While comparing Inderite 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 Inderite and Black Opal chemical formula.
- Chemical formula of Inderite- MgB 3O 3(OH) 5 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
Inderite and Black Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Inderite and Black Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Inderite and Black Opal Optical Properties during the identification of gemstone. Specific gravity of Inderite is 1.97-2.22 whereas that of Black Opal is 1.97-2.22.