Igneous rocks are really cool,
Small mineral crystals is the above ground rule.
Sediments are getting carried away, and are so aggravated
That they form a Sedimentary
Rock, Rock, Rock, Rock, Rock, Rock!
Near some mountains, volcanos and in the deep ocean,
Heat and pressure causes undetectable motion.
Turning any rock into a metaphoric rock is real easy.
Just flatten it like a pancake, easy peasy lemon squeezy.