SOLID COLORED MARBLES
Monochromatic (Solid Colored) marbles belong in a class
by themselves because they are not swirls, having no
design. They are composed of one color, either opaque,
transparent, or translucent. Many Solid Colored hand
made marbles have single pontils, though most will
evince two pontils. They often contain tiny air bubbles
that are oriented in one direction, demonstrating how
they were twisted from the cane.