Symmetry of spherical ice crystals

Page no. 291 of Hidden Unity in Nature’s Laws by John C. Taylor says the following –
"Take a spherical water drop.
No special direction is picked out by such a drop. If we rotate it
nothing has changed. A spherical ice crystal (assuming it to be a perfect crystal) does define special directions, by the way the molecules
are lined up in regular arrays. If we rotate it, it does in general
change, because the array is rotated".
Problem – I can’t see how a spherical ice crystal defines special directions – it seems to me to be like any other (rotational) symmetry-preserving spherical shape. Any explanation/resources would be welcome.