Tanzanite and Childrenite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Soluble
Durability
Hard
Not Available
Specific Gravity
3.35
3.06-3.25
Fracture
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Sub-Conchoidal, ConchoidalArthur Thomas, Conchoidal, Uneven
Cleavage
Perfect {010}, imperfect {100}
Poor/indistinct on {100}
Mohs Hardness
6.5-7
4.5-5
Chemical Composition
Ca2Al3(SiO4)3(OH)
(Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
Tanzanite and Childrenite Chemical Formula
While comparing Tanzanite and Childrenite 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 Childrenite chemical formula.
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
- Chemical formula of Childrenite- (Fe,Mn)AlPO 4(OH) 2 -H 2OArthur Thomas , Gemstones (2009)
Tanzanite and Childrenite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tanzanite and Childrenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Childrenite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 3.06-3.25 whereas that of Childrenite is 3.06-3.25.