Vocabulary 4 unit 2
Granite-a very hard, grey, pink, or black rock, used for building
noun- The nature of this granite is very hard and strong.
limestone-a white or light grey rock that is used as a building material and in the making of cement
noun- In Spain you find three kinds: granite, limestone and conglomerates.
marble-a type of very hard rock that has a pattern of lines going through it, feels cold, and can be polished to become smooth and shiny:
noun- The big slabs of granite or marble are very expansive.