Brookite
From apm
- Titanium is common in earths crust (and in space)
- Hardness is decent
- Crystal structure is simple
- Unit cell is not a bit fragmented (choose other unit cell?)
Overall a good structural base material for gemstone metamaterial technology for larger scale construction.
- Formula: TiO2
- Hardness Mohs 5.5 to 6.0
- Crystal system: orthorhombic
- Density ~4,133g/ccm
- Refractive index: nα = 2,583, nβ = 2,584, nγ = 2,700 – quite high
Related
Other polymorphs of same formula: