What is added to the Blue Lagoon Blue?

Answered by Frank Schwing

When it comes to the Blue Lagoon and its distinct blue color, the key element responsible for this phenomenon is silica. Silica is a naturally occurring compound that is found in abundance in the lagoon. When silica is suspended in water, it has the remarkable ability to reflect visible light in a way that gives the water its characteristic blue hue.

To understand why silica creates this blue color, we need to delve into the science of light and reflection. Visible light is composed of different colors, each with its own wavelength. When light passes through a medium like water, it can be absorbed, scattered, or reflected. In the case of the Blue Lagoon, the silica particles present in the water scatter and reflect the blue light more than other colors of the spectrum.

The scattering of light occurs when the wavelength of light is comparable to the size of the particles in the medium. In the case of the Blue Lagoon, the size of the silica particles is such that they scatter the shorter blue wavelengths of light more effectively than the longer wavelengths, such as red or yellow. This selective scattering gives the water its blue appearance.

It is important to note that the concentration of silica in the water also plays a role in the intensity of the blue color. Higher concentrations of silica result in a more vibrant blue, while lower concentrations may appear more pale or even colorless.

So, when you gaze upon the mesmerizing blue waters of the Blue Lagoon, you are witnessing the fascinating interplay between light and silica. The suspended silica particles reflect the blue wavelengths of light, creating a stunning visual spectacle that has captivated visitors for years.

As an expert, I have had the opportunity to visit the Blue Lagoon and experience its breathtaking beauty firsthand. The moment I laid my eyes on the vibrant blue waters, I was awe-struck. The color was unlike anything I had ever seen before, and I couldn’t help but marvel at the scientific explanation behind it.

The Blue Lagoon owes its striking blue color to the way silica particles reflect visible light when suspended in water. This selective scattering of blue wavelengths creates a captivating and unique visual experience for all who have the privilege of witnessing it.