Dravite and Magnesite Physical Properties
Solubility
-
Effervesces in hot HCl
Specific Gravity
3.03-3.18
2.92-3.12
Fracture
Uneven, Irregular, Conchoidal
Conchoidal
Cleavage
{???} Indistinct
[10 1 1] perfect
Mohs Hardness
7-7.5
3.5-4.5
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Dravite and Magnesite Chemical Formula
While comparing Dravite and Magnesite 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 Magnesite 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 Magnesite- MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Dravite and Magnesite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Dravite and Magnesite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Magnesite Optical Properties during the identification of gemstone. Specific gravity of Dravite is 2.92-3.12 whereas that of Magnesite is 2.92-3.12.