Edenite and Dravite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.05-3.37
3.03-3.18
Fracture
Conchoidal, Brittle, Conchoidal
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Cleavage
Good on (110)
{???} Indistinct
Chemical Composition
NaCa2Mg5Si7AlO22(OH)2
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Edenite and Dravite Chemical Formula
While comparing Edenite and Dravite 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 Edenite and Dravite chemical formula.
- Chemical formula of Edenite- NaCa2Mg5Si7AlO22(OH)2
- Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Edenite and Dravite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Edenite and Dravite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Edenite and Dravite Optical Properties during the identification of gemstone. Specific gravity of Edenite is 3.03-3.18 whereas that of Dravite is 3.03-3.18.