Tanzanite and Forsterite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Hard
Not Available
Specific Gravity
3.35
3.23-3.26
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}
Perfect on {010} imperfect on {100}
Mohs Hardness
6.5-7
6.5-7
Chemical Composition
Ca2Al3(SiO4)3(OH)
Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Tanzanite and Forsterite Chemical Formula
While comparing Tanzanite and Forsterite 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 Forsterite chemical formula.
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
- Chemical formula of Forsterite- Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Tanzanite and Forsterite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tanzanite and Forsterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Forsterite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 3.23-3.26 whereas that of Forsterite is 3.23-3.26.