Brookite and Aragonite Physical Properties
Solubility
Not Available
Dilute acid
Durability
Not Available
Not Available
Specific Gravity
3.87-4.14
2.93-2.96
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Poor on {120}, in traces on {001}
Distinct on {010}, imperfect {110} and {011}
Mohs Hardness
5.5-6
3.5-4
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Brookite and Aragonite Chemical Formula
While comparing Brookite 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 Brookite and Aragonite chemical formula.
- Chemical formula of Brookite- TiO 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
Brookite and Aragonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Brookite and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Brookite is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.