White succulent?

White succulent?

Observation - White succulent? - Southern Africa. Description: A small 4-6 plant with shiny fleshy leaves in opposite pairs and clusters of small white 4-petalled flowers. One of many plants in this area quite near the Vlei and not far from the reserve office (Sorry but I can't work out how to rotate the first pictu

A small 4-6" plant with shiny fleshy leaves in opposite pairs and clusters of small white 4-petalled flowers. One of many plants in this area quite near the Vlei and not far from the reserve office (Sorry but I can't work out how to rotate the first picture on the website)