Brookite and Moonstone Physical Properties
Specific Gravity
3.87-4.14
2.56-2.60
Fracture
Subconchoidal, Conchoidal
Uneven, ConchoidalWalter Schumann
Cleavage
Poor on {120}, in traces on {001}
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
Mohs Hardness
5.5-6
6-6.5
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8
Brookite and Moonstone Chemical Formula
While comparing Brookite and Moonstone 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 Moonstone chemical formula.
- Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al1-2Si3-2O8 Orthoclase Feldspar : KAlSi3O8
Brookite and Moonstone Specific Gravity
Another important criteria for qualitative analysis of gemstones is Brookite and Moonstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Moonstone Optical Properties during the identification of gemstone. Specific gravity of Brookite is 2.56-2.60 whereas that of Moonstone is 2.56-2.60.