Answer:
I am seen in the water. If seen in the sky, I am in the rainbow, a jay's feather, and lapis lazuli.
A house of wood in a hidden place. Built without nails or glue. High above the earthen ground It holds pale gems of blue.
Just head and foot yet never tires of dancing.
Through its wounds, water does run. It once held many but now has none. What is it?
Pregnant every time you see her, yet she never will give birth.
I have two eyes in the front and a lot of eyes on my tail