Opal and Friedelite Physical Properties
Tenacity
BrittleWalter Schumann
Not Available
Solubility
hot salt water
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.98-2.25
3.06-3.19
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Brittle
UnevenArthur Thomas, Gemstones (2009) Tough, UnevenArthur Thomas, Gemstones (2009) Tough, Brittle, Uneven
Cleavage
None
{010} Perfect
Chemical Composition
SiO2 · nH2O
Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
Opal and Friedelite Chemical Formula
While comparing Opal and Friedelite 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 Friedelite chemical formula.
- Chemical formula of Opal- SiO2 · nH2O
- Chemical formula of Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.
Opal and Friedelite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Opal and Friedelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Opal and Friedelite Optical Properties during the identification of gemstone. Specific gravity of Opal is 3.06-3.19 whereas that of Friedelite is 3.06-3.19.