Vocabulary 4 Unit II
Granite: a very hard, grey, pink, or black rock, used for building.
Noun My kitchen is granite.
Limestone: a white or light grey rock that is used as a building material and in the making of cement.
Noun Limestone fragments and a few silicified grains.
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 Lower surface of thorax testaceous and that of abdomen marbled dark brown on a pinkish ground..