Answer:
Schist
is a metamorphic rock that contains flakes of mica. Schist can originate as a sedimentary rock or igneous rock. Large crystals cause schist rocks to reflect lots of light which gives it a very shiny appearance. It is made up of clay minerals.
Granite
is an igneous rock composed of mostly two minerals: quartz and feldspar. It is an intrusive rock, meaning that it crystallized from magma that cooled far below the earth's surface. Granites usually have a coarse texture (individual minerals are visible without magnification), because the magma cools slowly underground, allowing larger crystal growth. It is the most common igneous rock.
Limestone
is a sedimentary rock. It is formed by layers of small pieces of rock and stones pressed hard together. The stone forms in wet areas which mean it will also contain of shells and waste matter from organisms that live in water.Limestone caves are formed when rainwater seeps through cracks in limestone rock and dissolves it. Limestone turns into the metamorphic rock marble when it is subjected to high amounts of pressure and heat.
