Common Opal and Vesuvianite Idocrase Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
1.98-2.50
  
3.25-3.50
  
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
  
Uneven, Uneven, Gemstones of the world (2001) More from other references
  
Cleavage
Not Available
  
Not Available
  
Mohs Hardness
5.5-6.5
  
Not Available
  
Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
  
Ca 10Mg 2Al 4(SiO 4) 5(Si 2O 7) 2(OH) 4Ulrich Henn and Claudio C.
  
Common Opal and Vesuvianite Idocrase Chemical Formula
While comparing Common Opal and Vesuvianite Idocrase 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 Common Opal and Vesuvianite Idocrase chemical formula.
- Chemical formula of Common Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
- Chemical formula of Vesuvianite Idocrase- Ca 10Mg 2Al 4(SiO 4) 5(Si 2O 7) 2(OH) 4Ulrich Henn and Claudio C.
Common Opal and Vesuvianite Idocrase Specific Gravity
Another important criteria for qualitative analysis of gemstones is Common Opal and Vesuvianite Idocrase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Common Opal and Vesuvianite Idocrase Optical Properties during the identification of gemstone. Specific gravity of Common Opal is 3.25-3.50 whereas that of Vesuvianite Idocrase is 3.25-3.50.