Answer:
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.
I have a neck but no head. I have a body but no arm. I have a bottom but no leg.
Green arrows grow out of my sides. I go from yellow to white. My babies fly in the wind. What am I?
Bury deep, Pile on stones, My mind will always Dig up them bones
He has married many women, but has never been married. Who is he?
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.