Chrysoberyl and Crystal Opal Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.69-3.81
1.97-2.22
Fracture
Uneven, Conchoidal to uneven, Brittle, Metallic, Uneven, ConchoidalWalter Schumann, Brittle, Metallic
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Distinct on {110}, imperfect on {010}, poor on {001}
Not Available
Mohs Hardness
8.5
5.5-6.5
Chemical Composition
BeAl 2 O 4
SiO 2 + H 2OUlrich Henn and Claudio C.
Chrysoberyl and Crystal Opal Chemical Formula
While comparing Chrysoberyl and Crystal Opal 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 Chrysoberyl and Crystal Opal chemical formula.
- Chemical formula of Chrysoberyl- BeAl 2 O 4
- Chemical formula of Crystal Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
Chrysoberyl and Crystal Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chrysoberyl and Crystal Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrysoberyl and Crystal Opal Optical Properties during the identification of gemstone. Specific gravity of Chrysoberyl is 1.97-2.22 whereas that of Crystal Opal is 1.97-2.22.