Herderite and Tanzanite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Hard
Specific Gravity
2.90-3.02
3.35
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Cleavage
Indistinct on {110}
Perfect {010}, imperfect {100}
Mohs Hardness
5-5.5
6.5-7
Chemical Composition
CaBePO 4(F,OH)Ulrich Henn and Claudio C.
Ca2Al3(SiO4)3(OH)
Herderite and Tanzanite Chemical Formula
While comparing Herderite 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 Herderite and Tanzanite chemical formula.
- Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
Herderite and Tanzanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Herderite and Tanzanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Herderite and Tanzanite Optical Properties during the identification of gemstone. Specific gravity of Herderite is 3.35 whereas that of Tanzanite is 3.35.