Lithium Triborate
LiB3O5, LBO

Crystal Structure

Orthorhombic, Space group Pna21, Point group mm2

Lattice Parameter

a=8.4473Å 
b=7.3788Å 
c=5.1395Å 
Z=2

Melting Point

About 834°C

Mohs Hardness

6

Density

2.47 g/cm³

Thermal Expansion Coefficient

ax= 10.8 x 10-5/K,
ay= -8.8 x 10-5/K 
az= 3.4 x 10-5/K

Absortion Coefficient

< 0.1 %/cm at 1064 nm