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Lithium Triborate ( LiB3O5, LBO )

 

Crystal Structure

Orthorhombic, Space group Pna21, Point group mm2

Lattice Parameter

a=8.4473
b=7.3788
c=5.1395
Z=2

Melting Point

About 834C

Mohs Hardness

6

Density

2.47 g/cm

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