Opal and Chondrodite Physical Properties
Tenacity
BrittleWalter Schumann
  
Brittle
  
Solubility
hot salt water
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
1.98-2.25
  
3.10-3.20
  
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
  
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Cleavage
None
  
Poor to good on (001)
  
Mohs Hardness
5-6.5
  
6-6.5
  
Chemical Composition
SiO2 · nH2O
  
(Mg,Fe) 5(SiO 4) 2(F,OH) 2Ulrich Henn and Claudio C.
  
Opal and Chondrodite Chemical Formula
While comparing Opal and Chondrodite 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 Opal and Chondrodite chemical formula.
- Chemical formula of Opal- SiO2 · nH2O
- Chemical formula of Chondrodite- (Mg,Fe) 5(SiO 4) 2(F,OH) 2Ulrich Henn and Claudio C.
Opal and Chondrodite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Opal and Chondrodite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Chondrodite Optical Properties during the identification of gemstone. Specific gravity of Opal is 3.10-3.20 whereas that of Chondrodite is 3.10-3.20.