How do you make color blends in glaze

[glinum]

Sometimes I see pieces with different color blends in glaze, it's like one color runs smoothly into another one usually in a chaotic manner. It's hard to explain, here's a picture of what I mean:

 

I have clear glaze and some color pigments. What's the process of doing this things? Do I have to stir a pigment with water, apply it to a piece and then cover with glaze? Or do I have to mix a pigment with glaze and apply it in one layer and then do the same for other colors?

 

I never did glazing, just learning things.

Thanks.

[Marcia Selsor]

The glaze with blue dripping color has the pigment or colorant in it. The green glazes is possibly copper or iron as the colorant and the leaf patterns may be a black stain or metal oxide in a texture applied before the glaze. I say this because there is some variation of the black where is seems to be bleeding out.

Marcia

[trina]

That looks to me like the leaves are glazed with a transparent green glaze, the pot was dipped in a transparent clear glaze and then copper carb was dripped around on top. T

[oldlady]

That looks to me like the leaves are glazed with a transparent green glaze, the pot was dipped in a transparent clear glaze and then copper carb was dripped around on top. T

 

 

the "clear" part may just be what is left after the coppery cobalt blue glaze ran down the sides.