Gold
For properties on this metal for crafting go here
Gold, blue
Blue gold is an alloy of gold and indium. It is not actually blue in color but rather a silvery white, more closely resembles platinum. Only available from a Prydaen merchant who sold blue gold items. Also seen on other Prydaen themed items.
Gold, red
Sometimes called "rose gold" or pink gold, red gold is a gold-copper alloy. Like many other colored gold alloys, it is not true red in color, but rather has the copper red metallic appearance with the luster of gold metal.
Gold, black
Unlike red and blue gold which are still gold with a colored hue - black gold has a dark black surface color with a metallic luster. This look is achieved traditionally by electroplating the surface of the metal to achieve the glossy black look.
This material is rare and must be provided for alterations. Generally it must retain the original shape in an alteration cannot be melted down or re-worked without losing its color. i.e.: a black gold ring must stay a ring