28 dezembro, 2009

GOLD

What is GOLD?
Gold is the most malleable and ductile of all metals; a single gram can be beaten into a sheet of 1 square meter, or an ounce into 300 square feet.
The color of pure gold is metallic yellow. Gold, caesium and copper are the only metallic elements with a natural color other than gray or white.

(clic on pic to enlarge for beter view)

2 comentários: