Brookite and Colemanite Physical Properties
Specific Gravity
3.87-4.14
2.40-2.42
Fracture
Subconchoidal, Conchoidal
-
Cleavage
Poor on {120}, in traces on {001}
{010} Perfect, {001} Distinct
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Brookite and Colemanite Chemical Formula
While comparing Brookite and Colemanite 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 Colemanite chemical formula.
- Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Colemanite- Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Brookite and Colemanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Brookite and Colemanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Colemanite Optical Properties during the identification of gemstone. Specific gravity of Brookite is 2.40-2.42 whereas that of Colemanite is 2.40-2.42.