Examples of metamorphic rocks include marble, which originates from limestone and slate, which originates from clay. Slate is dark grey/green in colour and can be split into thin layers for use as ...

There are lots of types of rock and each type has different properties and uses. For example, some are strong ... Other rocks, such as slate, do not let water soak through them.

For example ... in slate making it useful for making roof tiles because it can be split into separate flat sheets. Heat and pressure are needed in order for one rock to turn into a metamorphic ...