Answer:
Covered in stone and sun. It's home to many but also none. What is it?
What flares up and does a lot of good, and when it dies is just a piece of wood?
A precious stone, as clear as diamond. Seek it out while the sun's near the horizon. Though you can walk on water with its power, try to keep it, and it'll vanish in an hour.
Iron roof, glass walls, burns and burns and never falls.
What can you fold but not crease?
What is so fragile that saying its name breaks it?