Mimetite and Hercynite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
7.10
  
4.39
  
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
ConchoidalGemdat.org, Uneven
  
Cleavage
[10 1 1] Imperfect
  
{111} Indistinct, {111} Indistinct, {111} Indistinct
  
Mohs Hardness
3.5
  
7.5-8
  
Chemical Composition
Pb 5(AsO 4) 3ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
  
Mimetite and Hercynite Chemical Formula
While comparing Mimetite and Hercynite 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 Mimetite and Hercynite chemical formula.
- Chemical formula of Mimetite- Pb 5(AsO 4) 3ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Mimetite and Hercynite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Mimetite and Hercynite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Mimetite and Hercynite Optical Properties during the identification of gemstone. Specific gravity of Mimetite is 4.39 whereas that of Hercynite is 4.39.