Lithops francisci (Dinter & Schwantes)
N.E. Brown L. francisci grows
around Haalenberg in Namibia. Hammer described it as ""fluffy tapioca
pudding" and I agree that it is not the prettiest. It is also not
the general cultivation rules as it sometimes forgets to change leaves.
Keep somewhat drier than others to avoid ruining it's appearance. In my collection flowers are rare.