Rubbly limestone composed chiefly of petrified coral.
More example sentences
- Then, quite suddenly, the tarmac gave up so that we found ourselves bumping along a strip of white coral rag.
- All were made of cinder block and coral rag and had highly flammable palm-thatch roofs known locally as makuti.
- In Zanzibar, its habitats include the ground water forest, coral rag forest and possibly mangrove forest.