Precious Opal and Hibonite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.98-2.25
3.84
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references
Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Cleavage
Not Available
{0001} good, {10 1 0} parting
Mohs Hardness
5-6.5
7.5-8
Chemical Composition
SiO 2 · nH 2OGemdat.org , Management Team (2012)
(Ca,Ce)(Al,Ti,Mg)12O19
Precious Opal and Hibonite Chemical Formula
While comparing Precious Opal and Hibonite 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 Precious Opal and Hibonite chemical formula.
- Chemical formula of Precious Opal- SiO 2 · nH 2OGemdat.org , Management Team (2012)
- Chemical formula of Hibonite- (Ca,Ce)(Al,Ti,Mg)12O19
Precious Opal and Hibonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Precious Opal and Hibonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Precious Opal and Hibonite Optical Properties during the identification of gemstone. Specific gravity of Precious Opal is 3.84 whereas that of Hibonite is 3.84.