Paradox externally appears as a slightly luminescent soap bubble with a diameter of 50 kilometers, with iridescence similar to that of a real soap bubble.
In addition to simple body colour, minerals can have various other distinctive optical properties, such as play of colours, asterism, chatoyancy, iridescence, tarnish, and pleochroism.
The fossilized snake-skin had three types of pigment cells in different combinations- melanophores, which contain the pigment melanin; xanthophores, which contain carotenoid and pterin pigments; and iridophores, which create iridescence.
Female upperside, fore wing: bluish purple, paler outwardly, in certain lights with a resplendent iridescence; costa and apex very broadly, termen somewhat more narrowly fuscous black.
