Baryte and Dravite Physical Properties
Tenacity
Brittle
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.3-5
3.03-3.18
Fracture
Irregular/uneven
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Cleavage
Perfect cleavage parallel to base and prism faces: {001} Perfect, {210} Perfect, {010} Imperfect
{???} Indistinct
Mohs Hardness
3-3.5
7-7.5
Chemical Composition
Not Available
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Baryte and Dravite Chemical Formula
While comparing Baryte 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 Baryte and Dravite 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)
Baryte and Dravite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Baryte and Dravite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Baryte and Dravite Optical Properties during the identification of gemstone. Specific gravity of Baryte is 3.03-3.18 whereas that of Dravite is 3.03-3.18.