Dolomite and Aragonite Physical Properties
Solubility
Poorly soluble in dilute HCl
Dilute acid
Durability
Not Available
Not Available
Specific Gravity
2.80-2.95
2.93-2.96
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Perfect on {10 1 1}, rhombohedral cleavage
Distinct on {010}, imperfect {110} and {011}
Mohs Hardness
3.5-4
3.5-4
Chemical Composition
CaMg(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Dolomite and Aragonite Chemical Formula
While comparing Dolomite and Aragonite 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 Dolomite and Aragonite chemical formula.
- Chemical formula of Dolomite- CaMg(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Dolomite and Aragonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Dolomite and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dolomite and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Dolomite is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.