Sandstone creates layers of sediment-colored stripes on your dragon or colored stripes within the element’s color rules.
When sediment-colored, these layers should be predominantly red or tan, but can have one or two cool-colored stripes. The color scheme will be warm overall. You may scatter some bits of orange, brown, or tan dust across the marking (must all be the same color). Transitions between ‘layers’ in this marking must be clearly visible. It can cover 50% of the body.
Having trouble picking colors? Here are some suggestions! You do not have to pick directly from these sliders, but they should get you started.

Charged Sandstone
Charged Sandstone may cover the whole body, rather than just 50%.