that can happen only with special types of floating rocks. From rocks that spawn to life, to rocks that float through the clouds, the "Lapis volat banalis" is a species of rock that floats only after all water dries out of it. In this special case, the rock
has been trying to escape, but due to the tide, it never gets to completely dry out, thus creating the elongated shape. The same phenomenon has been found elswere, but none are as inhabitable as this. Geologists and mages alike have clarified that there is no
danger of the rock collapsing. Updated with a better lighted picture, but the quality of the camera still drags it down:





Click the pics for larger version.
Sorry for the grainy pics, taking pictures late in the day is not a good idea. This moc has used up all my dark blay and all my blue pieces, and is pretty much the largest and heaviest moc I ever built. Thanks for watching.