Aragonite and Spinel Physical Properties
Tenacity
Brittle
Not Available
Solubility
Dilute acid
none
Durability
Not Available
Not Available
Specific Gravity
2.93-2.96
3.64-3.66
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
Distinct on {010}, imperfect {110} and {011}
None, but may exhibit slight parting
Chemical Composition
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
MgAl2O4
Aragonite and Spinel Chemical Formula
While comparing Aragonite and Spinel 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 Aragonite and Spinel chemical formula.
- Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Spinel- MgAl2O4
Aragonite and Spinel Specific Gravity
Another important criteria for qualitative analysis of gemstones is Aragonite and Spinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aragonite and Spinel Optical Properties during the identification of gemstone. Specific gravity of Aragonite is 3.64-3.66 whereas that of Spinel is 3.64-3.66.