Deep below the earth when the rock phase shifts from solid to liquid.
Molten Mantle starts off looking deep purple in the bottle but shows off a slow shift from deep purple through red and orange to yellow when used over black.
Turboshift paints are made with tiny glass-like flakes that work like millions of small prisms within the paint. Depending on how the flakes are made, different colors are refracted or reflected in the light. In layman's terms this means that the paint changes color depending on what light you are viewing it under, and what angle you are holding it to that light.
Formulated for airbrush use, but may also be hand brushed.