Barite and Dravite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.48
3.03-3.18
Fracture
Uneven
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Cleavage
{010} Perfect, {210} Perfect, {010} Imperfect
{???} Indistinct
Mohs Hardness
3-3.5
7-7.5
Chemical Composition
BaSO4
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Barite and Dravite Chemical Formula
While comparing Barite 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 Barite and Dravite chemical formula.
- Chemical formula of Barite- BaSO4
- Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Barite and Dravite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Barite and Dravite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Barite and Dravite Optical Properties during the identification of gemstone. Specific gravity of Barite is 3.03-3.18 whereas that of Dravite is 3.03-3.18.