Jacobsite and Crocoite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.76-5.03
  
5.90-6.10
  
Fracture
Conchoidal, Brittle
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).
  
Cleavage
None
  
{110} Distinct, {001} Indistinct, {100} Indistinct
  
Mohs Hardness
5.5-6.5
  
2.5-3
  
Chemical Composition
(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
  
PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Jacobsite and Crocoite Chemical Formula
While comparing Jacobsite and Crocoite 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 Jacobsite and Crocoite chemical formula.
- Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
- Chemical formula of Crocoite- PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Jacobsite and Crocoite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Jacobsite and Crocoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jacobsite and Crocoite Optical Properties during the identification of gemstone. Specific gravity of Jacobsite is 5.90-6.10 whereas that of Crocoite is 5.90-6.10.