Opal and Cancrinite Physical Properties
Tenacity
BrittleWalter Schumann
Brittle
Solubility
hot salt water
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.98-2.25
2.42-2.52
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
Irregular/uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
None
Perfect on {10 1 0}, poor on {0001}
Chemical Composition
SiO2 · nH2O
Na 2Ca 2Al 6Si 6O 24(CO 3) 2Walter Schumann , Gemstones of the world (2001) More from other references
Opal and Cancrinite Chemical Formula
While comparing Opal and Cancrinite 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 Cancrinite chemical formula.
- Chemical formula of Opal- SiO2 · nH2O
- Chemical formula of Cancrinite- Na 2Ca 2Al 6Si 6O 24(CO 3) 2Walter Schumann , Gemstones of the world (2001) More from other references
Opal and Cancrinite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Opal and Cancrinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Cancrinite Optical Properties during the identification of gemstone. Specific gravity of Opal is 2.42-2.52 whereas that of Cancrinite is 2.42-2.52.