A bolded sun cross, with less negative space. Similar to U+2295.
<a href="//commons.wikimedia.org/wiki/User:Silsor" title="User:Silsor">Silsor</a>
Own work based on: <a href="//commons.wikimedia.org/w/index.php?title=File:Crossed_circle.ant.png&amp;action=edit&amp;redlink=1" class="new" title="File:Crossed circle.ant.png (page does not exist)">Crossed circle.ant.png</a> <i>by</i> <a href="//commons.wikimedia.org/w/index.php?title=User:Ant&amp;action=edit&amp;redlink=1" class="new" title="User:Ant (page does not exist)">Ant</a>