Tanzanite and Goethite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
HCl soluble
Durability
Hard
Not Available
Specific Gravity
3.35
4.27-4.29
Fracture
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).
Cleavage
Perfect {010}, imperfect {100}
Perfect {010}
Mohs Hardness
6.5-7
5-5.5
Chemical Composition
Ca2Al3(SiO4)3(OH)
FeO(OH)Arthur Thomas , Gemstones (2009)
Tanzanite and Goethite Chemical Formula
While comparing Tanzanite and Goethite 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 Goethite chemical formula.
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
- Chemical formula of Goethite- FeO(OH)Arthur Thomas , Gemstones (2009)
Tanzanite and Goethite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tanzanite and Goethite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Goethite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 4.27-4.29 whereas that of Goethite is 4.27-4.29.