My Colourful Crystal

Hiding in a crowded cave
With bats, worms, and other gems
At the bottom of a cave
Hiding from a rusted pickaxe
I shone brighter than the stars
Staying away from peoples' eyes
Being bright
Shining light
When I'm found I'm kept safe
In a locker
Or a store
I’m treated like one million dollars
People say “Wow!” when they see me.