Erythrite and Brookite Physical Properties
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.06
3.87-4.14
Fracture
Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
Perfect on {010}; poor on {100} and { 1 02}.
Poor on {120}, in traces on {001}
Mohs Hardness
Not Available
5.5-6
Chemical Composition
Co3(AsO4)2•8(H2O)
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Erythrite and Brookite Chemical Formula
While comparing Erythrite 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 Erythrite and Brookite chemical formula.
- Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)
- Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Erythrite and Brookite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Erythrite and Brookite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Erythrite and Brookite Optical Properties during the identification of gemstone. Specific gravity of Erythrite is 3.87-4.14 whereas that of Brookite is 3.87-4.14.