Dravite and Cassiterite Physical Properties
Specific Gravity
3.03-3.18
6.86-7.03
Fracture
Uneven, Irregular, Conchoidal
Subconchoidal, Uneven, Conchoidal, Irregular
Cleavage
{???} Indistinct
{100} imperfect, {110} indistinct; partings on {111} or {011}
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Dravite and Cassiterite Chemical Formula
While comparing Dravite and Cassiterite 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 Cassiterite 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 Cassiterite- SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Dravite and Cassiterite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Dravite and Cassiterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Cassiterite Optical Properties during the identification of gemstone. Specific gravity of Dravite is 6.86-7.03 whereas that of Cassiterite is 6.86-7.03.