Tanzanite and Marcasite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Hard
Not Available
Specific Gravity
3.35
4.80-4.90
Fracture
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven
Cleavage
Perfect {010}, imperfect {100}
{010} Indistinct
Mohs Hardness
6.5-7
6-6.5
Chemical Composition
Ca2Al3(SiO4)3(OH)
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Tanzanite and Marcasite Chemical Formula
While comparing Tanzanite and Marcasite 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 Marcasite chemical formula.
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
- Chemical formula of Marcasite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Tanzanite and Marcasite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tanzanite and Marcasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Marcasite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 4.80-4.90 whereas that of Marcasite is 4.80-4.90.