Dravite and Chromite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.03-3.18
4.5-4.8
Fracture
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Uneven
Cleavage
{???} Indistinct
None, parting may develop along {111}
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Fe++Cr2O4
Dravite and Chromite Chemical Formula
While comparing Dravite and Chromite 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 Chromite 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 Chromite- Fe++Cr2O4
Dravite and Chromite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Dravite and Chromite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Chromite Optical Properties during the identification of gemstone. Specific gravity of Dravite is 4.5-4.8 whereas that of Chromite is 4.5-4.8.