easy expolanation, the yellow and the blue mix making green.
the yellow gold absorbs the yellow light
it's just absorbing the yellow, because it is yellow. Did you go to elementary school?
http://en.wikipedia.org/wiki/Pigment
Gold is a yellowish color it contains cyan pigments as well. The pigments absorb the same color rays and reflect all other colors so its not a mystery
iloominaughty confirm'd +99999999999
Not 4 colors, 5 in! (red, green, cyan, blue, yellow)