Dravite and Bornite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.03-3.18
5.06-5.08
Fracture
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Uneven, Subconchoidal, Conchoidal, Brittle
Cleavage
{???} Indistinct
Poor on [111].
Mohs Hardness
7-7.5
3-3.25
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Cu5FeS4
Dravite and Bornite Chemical Formula
While comparing Dravite and Bornite 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 Bornite 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 Bornite- Cu5FeS4
Dravite and Bornite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Dravite and Bornite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Bornite Optical Properties during the identification of gemstone. Specific gravity of Dravite is 5.06-5.08 whereas that of Bornite is 5.06-5.08.