posted by Samantha .
I grew in a cave, but i'm not alive. i began as water and minerals, but now i am solid. i grow upwards, but i never see the sky. What am i?
Sounds to me like you are a stalagmite.
A stalactite grows from the top down.
It's easy to remember which is which -
there's a "g" in stalagmite, like the
"g" in ground; ergo - from the ground up.