Observation of the 532 nm-laser-induced fluorescence spectra of two ki
nds of Cr:Mg2SiO4 crystalline samples grown in different atomsphere ar
e reported. The experiments were conducted at both room temperature an
d liquid-nitrogen temperature. The fluorescence spectra of the two kin
ds of samples were different with respect to the polarizing direction
of the inducing laser, and two emission bands with different polarized
characters and various enhancement in intensity at low temperatures w
ere also found. In the light of the calculated results by Ms-X(alpha)
method, the main experimental results are explained.