Eosphorite and Goethite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
HCl soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.05-3.08
  
4.27-4.29
  
Fracture
Subconchoidal, Uneven, Conchoidal, Uneven
  
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
  
Cleavage
Poor on {100}
  
Perfect {010}
  
Mohs Hardness
5
  
5-5.5
  
Chemical Composition
Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
  
FeO(OH)Arthur Thomas , Gemstones (2009)
  
Eosphorite and Goethite Chemical Formula
While comparing Eosphorite and Goethite 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 Eosphorite and Goethite chemical formula.
- Chemical formula of Eosphorite- Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
Eosphorite and Goethite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Eosphorite and Goethite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Eosphorite and Goethite Optical Properties during the identification of gemstone. Specific gravity of Eosphorite is 4.27-4.29 whereas that of Goethite is 4.27-4.29.