Black Opal and Chrome Tourmaline Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
1.97-2.22
2.85-3.35
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Not Available
3,2
Mohs Hardness
6-6.5
7-7.5
Chemical Composition
SiO 2 + H 2OUlrich Henn and Claudio C.
Tourmaline is a series of several different minerals with unique chemical formulas.
Black Opal and Chrome Tourmaline Chemical Formula
While comparing Black Opal and Chrome Tourmaline 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 Black Opal and Chrome Tourmaline chemical formula.
- Chemical formula of Black Opal- SiO 2 + H 2OUlrich Henn and Claudio C.
- Chemical formula of Chrome Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas.
Black Opal and Chrome Tourmaline Specific Gravity
Another important criteria for qualitative analysis of gemstones is Black Opal and Chrome Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Black Opal and Chrome Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Black Opal is 2.85-3.35 whereas that of Chrome Tourmaline is 2.85-3.35.