 L1<sub>0</sub></th>  <td align="right">fct, L1_0</td>   <td align="right">2 (a et c)</td> <td align="right">1 ou 2</td> </tr>
  
  <tr> <th colspan="4" class="ftype">Mailles hexagonales</th> </tr>
  <tr> <th align="left">Hexagonal compact</th>  <td align="right">hcp</td>   <td align="right">2 (a et c)</td> <td align="right">1 ou 2</td> </tr>
  <tr> <th align="left">Wurtzite</th>   <td align="right">wurtzite, wz</td>   <td align="right">2 (a et c)</td> <td align="right">2</td> </tr>
  <tr> <th align="left">