 class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;                                              <span class="stringliteral">&#39;OC4&#39;</span>,  <span class="comment"># calcium ion, 4 waters coordinated</span></div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;                                              <span class="stringliteral">&#39;OC7&#39;</span>,  <span class="comment"># calcium ion, 7 waters coordinated</span></div><div class="line"><a name=