extrusive		process in which dissolved minerals crystallize and glue particles of sediment together
sedimentary		ancient Egyptians used this for statues
clastic		Simon and this singer sang "I Am A Rock."
silica		occurs when running water or wind loosen and carry away the fragments of rock
nonfoliated		rocks that formed from lava that erupted onto Earth's surface
quartzite		...around the Christmas tree
rockin		metamorphic rock formed from granite
intrusive		rocks that are classified according to their origin, texture, and mineral composition
chemical		large crystals scattered on a background of much smaller crystals
sediment		heat and pressure deep beneath Earth's surface can change any rock into this kind of rock
porphyritic		sedimentary rock that forms when rock fragments are squeezed together
marble		great heat and pressure changes this rock to slate
granite		these gather no moss and this is also the name of a rock and roll group
deposition		mineral grains in these rocks are arranged randomly
igneous		small, solid pieces of material that come from rocks or living things
garfunkel		rocks that formed when magma hardened beneath Earth's surface
sandstone		compaction and cementation changes sediment to this kind of rock
rollingstones		forms where the remains of plants and animals are deposited in thick layers
organic		rocks that have their grains arranged in parallel layers or bands
cementation		Taj Mahal is made of this rock
shale		forms when minerals that are dissolved in a solution crystallize
erosion		process that presses sediments together
compaction		White House is made of this
foliated		lava that is low in this usually forms dark-colored rocks
gneiss		process by which sediment settles out of the water or wind carrying it
metamorphic		metamorphic rock formed from sandstone