<html><body><div>Actually ice IX, along with: ice Ih, ice II, ice VI, ice VII and ice VIII. <br> <br><a href="https://www.sciencedirect.com/science/article/abs/pii/S0009261499013068 ">https://www.sciencedirect.com/science/article/abs/pii/S0009261499013068 </a> <br> <br>Wes Brodsky,<br>“Ornithology is not a bird.”</div></body></html>