oscarps
The small air bubbles that are trapped in the ice reflect the light, multiple times and all the colors, from red to violet, escape, so that the light we receive is white light. The ice appears blue when it has a very high consistency and the air bubbles do not impede the passage of light through it. Without the “dispersive” effect of the bubbles, light can penetrate into the ice by being absorbed gradually on its way to the deeper parts.
