Cobaltite and Tanzanite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Hard
  
Specific Gravity
6.3
  
3.35
  
Fracture
UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic
  
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
  
Cleavage
{100} Good, {010} Good, {001} Good
  
Perfect {010}, imperfect {100}
  
Mohs Hardness
5.5
  
6.5-7
  
Chemical Composition
CoAsSAnthony et al , Handbook of mineralogy (2001)
  
Ca2Al3(SiO4)3(OH)
  
Cobaltite and Tanzanite Chemical Formula
While comparing Cobaltite and Tanzanite 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 Cobaltite and Tanzanite chemical formula.
- Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
Cobaltite and Tanzanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Cobaltite and Tanzanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cobaltite and Tanzanite Optical Properties during the identification of gemstone. Specific gravity of Cobaltite is 3.35 whereas that of Tanzanite is 3.35.