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.
During the 1800's these turned women into hourglasses and is becoming more popular again these days
Forward I’m heavy, but backwards I’m not.
Being able to interpret the letters on this screen proves that you have this quality.
You can hold it without using your hands or arms. What is it?
I have two eyes in the front and a lot of eyes on my tail