Tanzanite and Fayalite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Hard
Not Available
Specific Gravity
3.35
4.392
Fracture
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Cleavage
Perfect {010}, imperfect {100}
{010} moderate, {100} imperfect
Mohs Hardness
6.5-7
6.5-7
Chemical Composition
Ca2Al3(SiO4)3(OH)
Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Tanzanite and Fayalite Chemical Formula
While comparing Tanzanite and Fayalite 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 Tanzanite and Fayalite chemical formula.
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
- Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Tanzanite and Fayalite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tanzanite and Fayalite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Fayalite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 4.392 whereas that of Fayalite is 4.392.