White Opal and Tanzanite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Hard
Specific Gravity
1.98-2.50
3.35
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Cleavage
Not Available
Perfect {010}, imperfect {100}
Mohs Hardness
5.5-6.5
6.5-7
Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Ca2Al3(SiO4)3(OH)
White Opal and Tanzanite Chemical Formula
While comparing White Opal and Tanzanite 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 Tanzanite chemical formula.
- Chemical formula of White Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
White Opal and Tanzanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is White Opal and Tanzanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use White Opal and Tanzanite Optical Properties during the identification of gemstone. Specific gravity of White Opal is 3.35 whereas that of Tanzanite is 3.35.