Tanzanite and Gedrite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Hard
Not Available
Specific Gravity
3.35
3.15-3.259
Fracture
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Not Available
Cleavage
Perfect {010}, imperfect {100}
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
Mohs Hardness
6.5-7
5.5-6
Chemical Composition
Ca2Al3(SiO4)3(OH)
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Tanzanite and Gedrite Chemical Formula
While comparing Tanzanite and Gedrite 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 Gedrite chemical formula.
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
- Chemical formula of Gedrite- (Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Tanzanite and Gedrite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tanzanite and Gedrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Gedrite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 3.15-3.259 whereas that of Gedrite is 3.15-3.259.