Chrysoberyl and Common Opal Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.69-3.81
1.98-2.50
Fracture
Uneven, Conchoidal to uneven, Brittle, Metallic, Uneven, ConchoidalWalter Schumann, Brittle, Metallic
Conchoidal, Conchoidal, Gemstones of the world (2001)
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 · nH 2OWalter Schumann , Gemstones of the world (2001)
Chrysoberyl and Common Opal Chemical Formula
While comparing Chrysoberyl and Common 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 Common Opal chemical formula.
- Chemical formula of Chrysoberyl- BeAl 2 O 4
- Chemical formula of Common Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Chrysoberyl and Common Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chrysoberyl and Common Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chrysoberyl and Common Opal Optical Properties during the identification of gemstone. Specific gravity of Chrysoberyl is 1.98-2.50 whereas that of Common Opal is 1.98-2.50.