Pleiospilos nelii, the split rock, splitrock or living granite,[1] is a species of flowering plant in the family Aizoaceae, native to South Africa.

[2] The species epithet nelii honours the South African botanist Gert Cornelius Nel.

This very short-stemmed, nearly stemless plant has one or more pairs of opposite, almost hemispherical, grey-green or brownish leaves.

This plant closely resembles a small cracked rock (hence the common name), an appearance which may have evolved as a defence against herbivory.

The superficially daisy-like flowers are yellow-orange, 6–7.5 cm (2–3 in) across, and emerge from the plant's apical bud.