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.

Your trash

this is dum

I need help with this same thing Samantha said

Based on the provided information, you are most likely a stalagmite.

Stalagmites are mineral formations found in caves that grow upwards from the cave floor. They are formed when mineral-rich water drips from the cave ceiling, leaving behind minerals and calcite deposits. Over time, these deposits accumulate and harden, resulting in a solid structure. Stalagmites can sometimes become quite tall, but since they grow in the darkness of caves, they never have the opportunity to see the sky.

http://www.goodearthgraphics.com/virtcave/stalmite/stalmite.html

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.