The chemical formula is LiB3. Stronger than orthorhombic crystal systems. The space group is P21Cn, and the Mohs hardness is 6. This is a relatively new nonlinear optical crystal. Large size crystal are mainly grown by descent method. When growing by pulling method, it is due to high viscosity, volatility, high stress and other reasons. cracking and defects have occurred. For example; Wraps and bubbles.
Inorganic non-metallic materials -> Crystal growth and crystal materials