Moldavite and Goethite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
HCl soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.32-2.38
  
4.27-4.29
  
Fracture
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
  
Cleavage
Not Available
  
Perfect {010}
  
Mohs Hardness
5.5
  
5-5.5
  
Chemical Composition
SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)
  
FeO(OH)Arthur Thomas , Gemstones (2009)
  
Moldavite and Goethite Chemical Formula
While comparing Moldavite 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 Moldavite and Goethite chemical formula.
- Chemical formula of Moldavite- SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)
- Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
Moldavite and Goethite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Moldavite and Goethite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Moldavite and Goethite Optical Properties during the identification of gemstone. Specific gravity of Moldavite is 4.27-4.29 whereas that of Goethite is 4.27-4.29.