The melting point of a solid is the temperature at which it changes state from solid to liquid. When considered as the temperature of the reverse change, the temperature is referred to as the freezing point. For example, the melting point of mercury (element) is 234.32 Kelvin (-37.89 °F)
... and various carotenoids[?]. Bacteria contain various other pigments. It may be noted that the typical colors of photosynthetic organisms (green, brown, golden, or red) ...