Microstructural Analysis and Magnetic Characterization of Native and Magnetically Modified Montmorillonite and Vermiculite

Table 2

Mössbauer parameters of paramagnetic fraction in the vermiculite samples; original (Ver) and magnetically modified (MVer) state; T (K): temperature of measurement.

T (K)	295		7
	Ver	MVer	Ver	MVer
δ1 (mm/s)	0.44 (1)	0.48 (3)	0.61 (2)	0.43 (3)
δ2 (mm/s)	0.24 (1)	0.32 (2)	0.39 (1)	0.48 (3)
δ3 (mm/s)	0.22 (1)	0.28 (7)	0.39 (4)	0.30 (5)
δ4 (mm/s)	1.07 (4)	1.17 (2)	1.16 (2)	1.37 (2)
ΔEQ1 (mm/s)	0.97 (2)	1.09 (6)	0.97 (4)	1.05 (7)
ΔEQ2 (mm/s)	0.57 (2)	0.76 (4)	0.76 (2)	0.95 (5)
ΔEQ3 (mm/s)	2.74 (12)	2.40 (16)	2.81 (8)	2.92 (10)
ΔEQ4 (mm/s)	2.71 (9)	2.46 (4)	2.96 (4)	2.55 (4)