amorphous ice
...that amorphous ice is a solid form of water that, like glass, has no crystal structure?
...that <b id="mwBJo"><a href="./Amorphous_ice" id="mwBJs" rel="mw:WikiLink" title="Amorphous ice">amorphous ice</a></b> is a solid form of water that, like <a href="./Glass" id="mwBJw" rel="mw:WikiLink" title="Glass">glass</a>, has no <a href="./Crystal" id="mwBJ0" rel="mw:WikiLink" title="Crystal">crystal</a> structure?