Tanzanite and Cobaltite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Hard
Not Available
Specific Gravity
3.35
6.3
Fracture
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic
Cleavage
Perfect {010}, imperfect {100}
{100} Good, {010} Good, {001} Good
Chemical Composition
Ca2Al3(SiO4)3(OH)
CoAsSAnthony et al , Handbook of mineralogy (2001)
Tanzanite and Cobaltite Chemical Formula
While comparing Tanzanite and Cobaltite 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 Cobaltite chemical formula.
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
- Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)
Tanzanite and Cobaltite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tanzanite and Cobaltite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Cobaltite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 6.3 whereas that of Cobaltite is 6.3.