granite: a very hard, grey, pink, or black rock, used for building
part of speech: noun. The house is made of granite.
limestone:a white or light grey rock that is used as a building material and in the making of cement
part of speech: noun. The margins of some of the limestone blocks are slickensided.
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
part of speech: noun. My mom like all the things that are made of marble.