(Well practically)
Sedentary - loose sediment which gets compacted together to form ROCKS.
Igneous - ROCKS made from crystals that are formed from cooling lava/magma (not sure which).
Metamorphic - any kind of ROCK which then gets buried, boiled, and squeezed.
...So anyone have any additional insights?
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Stalagmites (geological cave growths that grow from the ground up) and stalactites (same, but from the ceiling to the floor).
I remember something else about the hardness/softness of rocks...but I couldn't tell you anything other than that.
Yup...that's about it. :)
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