White Opal and Cobaltite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.98-2.50
6.3
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic
Cleavage
Not Available
{100} Good, {010} Good, {001} Good
Mohs Hardness
5.5-6.5
5.5
Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
CoAsSAnthony et al , Handbook of mineralogy (2001)
White Opal and Cobaltite Chemical Formula
While comparing White Opal and Cobaltite 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 White Opal and Cobaltite chemical formula.
- Chemical formula of White Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
- Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)
White Opal and Cobaltite Specific Gravity
Another important criteria for qualitative analysis of gemstones is White Opal and Cobaltite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use White Opal and Cobaltite Optical Properties during the identification of gemstone. Specific gravity of White Opal is 6.3 whereas that of Cobaltite is 6.3.