I'm not aware of any dedicated list, but a quick grep for PhotonReflectWavelengths in the source yields this. The lines with recognisable element names tell you what number those elements mask the ctype of the photons with. The ones with 0x00000000 (e.g. COAL) completely absorb photons, the ones with numbers with more red bits like 0x3FF00000 (e.g. LAVA) filter out the non-red components, etc.