Brookite and Gaspeite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
HCl soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.87-4.14
  
3.71
  
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Uneven
  
Cleavage
Poor on {120}, in traces on {001}
  
{10 1 1} Good
  
Mohs Hardness
5.5-6
  
4.5-5
  
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
(Ni,Mg,Fe++)CO3
  
Brookite and Gaspeite Chemical Formula
While comparing Brookite and Gaspeite 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 Gaspeite chemical formula.
- Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Gaspeite- (Ni,Mg,Fe++)CO3
Brookite and Gaspeite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Brookite and Gaspeite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Gaspeite Optical Properties during the identification of gemstone. Specific gravity of Brookite is 3.71 whereas that of Gaspeite is 3.71.