Marbling is a surface design technique using paints rather than dyes. The paints are floated on a thickened water based size and then manipulated. Paint dropped on paint does not mix, but pushes previously dropped paint aside, concentrating the color.
I make my own paints with natural pigments, including earth ochers, charcoal, indigo, dye lakes, and some pigments manufactured to have the same composition as the original rocks. Besides my inclination toward sustainability, my special focus is in adding interest to some of my dyed scarves. I usually dye the scarves a light shade first, then marble, but sometimes I marble first, then dye.