Dravite and Rhodolite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.03-3.18
3.84
Fracture
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Conchoidal
Cleavage
{???} Indistinct
none, may show indistinct parting
Mohs Hardness
7-7.5
7-7.5
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
(Mg,Fe)3Al2Si3O12
Dravite and Rhodolite Chemical Formula
While comparing Dravite and Rhodolite 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 Dravite and Rhodolite chemical formula.
- Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
- Chemical formula of Rhodolite- (Mg,Fe)3Al2Si3O12
Dravite and Rhodolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Dravite and Rhodolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Rhodolite Optical Properties during the identification of gemstone. Specific gravity of Dravite is 3.84 whereas that of Rhodolite is 3.84.