Tanzanite and Natrolite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Hard
Not Available
Specific Gravity
3.35
2.20-2.26
Fracture
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Uneven, Brittle, Metallic, Gemstones (2009)
Cleavage
Perfect {010}, imperfect {100}
Perfect on {110}
Mohs Hardness
6.5-7
5-5.5
Chemical Composition
Ca2Al3(SiO4)3(OH)
Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Tanzanite and Natrolite Chemical Formula
While comparing Tanzanite and Natrolite 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 Natrolite chemical formula.
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
- Chemical formula of Natrolite- Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Tanzanite and Natrolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tanzanite and Natrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Natrolite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 2.20-2.26 whereas that of Natrolite is 2.20-2.26.