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