Table 2 Optimized and experimental unit cell parameters (Å) and bond lengths (Å) of lizardite and its chemical substitutions (A3(Si2O5)(OH)4), separated by group.

From: Mechanical Properties of Chemically Modified Clay

A

a = b

c

vol (Å3)

Si-Oa

Si-Ob

A-OHin

A-OHout

A-Oa

OHin

OHout

Mga

5.332

7.233

178.086

1.616

1.646

2.083

2.021

2.121

0.794

0.837

Mg

5.324

7.239

177.716

1.599

1.659

2.087

2.021

2.142

0.974

0.979

Ca

5.642

7.519

207.282

1.598

1.720

2.282

2.229

2.283

0.981

0.974

Mn

5.433

7.351

187.940

1.602

1.680

2.151

2.099

2.217

0.979

0.985

Fe

5.247

7.296

173.962

1.602

1.653

2.081

2.170

2.196

0.982

0.985

Ni

5.281

7.174

173.266

1.602

1.656

2.043

2.002

2.101

0.979

0.985

Zn

5.355

7.245

179.933

1.598

1.667

2.091

2.035

2.172

0.977

0.984

  1. The letter A is the element substituted in the lizardite structure. The calculated and experimental angles are \(\alpha =\beta =90^\circ \) and \(\gamma =120^\circ \) for all systems.
  2. aMellini2.
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