In producing peacock marbles, I obtained most excellent results even without primary colors. They were not so bright and lustrous in their general color effect, but their most subdued tones were most pleasing to the eye.
To one of these marbles I used the colors in the following order; black, medium olive green, dark bluish-green, bronze or ochre yellow, dark blue and bright chrome yellow, (to obtain the olive, use the following mixture; 3 parts light orange, 1/2 part dark blue; bluish-green as described above; ochre yellow, 2 parts light chrome yellow, 1 part brown; blackish-blue, 2 parts dark-blue, 1 part black; light chrome yellow, 2 parts light orange, 2 parts white.)
Beautiful bouquet marbles are obtained from the following colors; blackish-green, 2 parts black, 1 part green; yellowish-green, 2 parts yellow, 1 part green; light-brown, dark bluish-green as above, scarlet-red and light ochre yellow. In this way many combinations of color can be obtained, and it is left to the judgment of the marbler to select colors and make the mixtures. Having succeeded in producing beautiful marbles with few colors, it will be easy for anyone to produce others with more colors.