Achroite and Magnesite Physical Properties
Solubility
-
Effervesces in hot HCl
Specific Gravity
2.90-3.40
2.92-3.12
Fracture
Uneven, ConchoidalWalter Schumann
Conchoidal
Cleavage
Indiscernible
[10 1 1] perfect
Mohs Hardness
7-7.5
3.5-4.5
Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Achroite and Magnesite Chemical Formula
While comparing Achroite 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 Achroite and Magnesite chemical formula.
- Chemical formula of Achroite- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
- Chemical formula of Magnesite- MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Achroite and Magnesite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Achroite and Magnesite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Achroite and Magnesite Optical Properties during the identification of gemstone. Specific gravity of Achroite is 2.92-3.12 whereas that of Magnesite is 2.92-3.12.