"Thanks so much for caring about me, I care about you, too," Stone said in a video detailing the injury. Sharon Stone had an ...

Well-known metamorphic rocks are marble and slate. Igneous rocks are made when liquified rock, called magma or lava, cools and solidifies. Well-known igneous rocks are obsidian and granite.

Metamorphic rocks are also formed because of ... The limestone in the Marble Arch Caves formed around 330 million years ago You may know what a cave looks like, but can you define it?