Sandstone Rock - is composed of sand sized minerals and rock grains.
Limestone Rock - composed of skeletal fragments such as coral, forams and molluscs.
Siltstone Rock - fine grained and consisted with hardened silt.
Metamorphic Rocks - a transformation of pre - existing rocks.
where metamorphic rocks are found.
Gneiss Rock - rocks formed by pre - existing formations that were originally either igneous or sedimentary rocks.
Phyllite - foliated metamorphic rock created from slate.
schist - large, flat, sheet-like grains
Slate - fine - grained, foliated, homogeneous metamorphic rock.
where igneous rocks can be found.
Diorite - an intrusive igneous rock composed of silicate minerals.
Gabbro - large groups of dark, phaneritic, mafic rocks
Granite - composed of mainly quartz and feldspar.
pegmatite - forms during the final stage of magma's crystallization.