Three main types of rocks

metamorphic rocks are formed through the change [metamorphosis] of igneous and sedimentary rocks. A contact metemorphism is rocks are so close to magma that they partially melt and change so much that they change there properties.

marble

slate

hornfels

eclogite

phhyllite

sedimentary rocks are formed through solidification of sediment.sedimentary rocks were named that because they were once sediment.

coal

chalk

chert

shale

turbidite

Igneous rocks are formed from the cooling of magma from deep in the earth. magma is the heart of any igneous rock.when maaagme cools it turns into Igneous rocks.

valcanic bomb

tuff

basalt

gabbra

decite