Opal and Moldavite Physical Properties
Tenacity
BrittleWalter Schumann
Not Available
Solubility
hot salt water
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.98-2.25
2.32-2.38
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)
Cleavage
None
Not Available
Chemical Composition
SiO2 · nH2O
SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)
Opal and Moldavite Chemical Formula
While comparing Opal and Moldavite 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 Moldavite chemical formula.
- Chemical formula of Opal- SiO2 · nH2O
- Chemical formula of Moldavite- SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)
Opal and Moldavite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Opal and Moldavite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Moldavite Optical Properties during the identification of gemstone. Specific gravity of Opal is 2.32-2.38 whereas that of Moldavite is 2.32-2.38.