Brookite and Prehnite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.87-4.14
2.80-2.95
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic
Cleavage
Poor on {120}, in traces on {001}
Distinct on [001]
Mohs Hardness
5.5-6
6-6.5
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca2Al2Si3O12(OH)
Brookite and Prehnite Chemical Formula
While comparing Brookite and Prehnite 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 Prehnite chemical formula.
- Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Prehnite- Ca2Al2Si3O12(OH)
Brookite and Prehnite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Brookite and Prehnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Prehnite Optical Properties during the identification of gemstone. Specific gravity of Brookite is 2.80-2.95 whereas that of Prehnite is 2.80-2.95.