Tanzanite and Hackmanite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Hard
Not Available
Specific Gravity
3.35
2.27-2.33
Fracture
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
Cleavage
Perfect {010}, imperfect {100}
Not Available
Mohs Hardness
6.5-7
5.5-6
Chemical Composition
Ca2Al3(SiO4)3(OH)
Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Tanzanite and Hackmanite Chemical Formula
While comparing Tanzanite and Hackmanite 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 Hackmanite chemical formula.
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
- Chemical formula of Hackmanite- Na 8Al 6Si 6O 24Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Tanzanite and Hackmanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tanzanite and Hackmanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Hackmanite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 2.27-2.33 whereas that of Hackmanite is 2.27-2.33.