Last Updated on August 17, 2022

Sand is the result of erosion of a rock and it may come in different colors depending on what type of mineral is made of: there is of course yellow sand in most beaches, orange and red sand in the desert, but also white sand made of gypsum and black sand in the form of volcanic ash. But is there such a thing as blue sand?

As a matter of fact, blue sand does exist in nature, although at present there is no such a thing as a beach with blue sand anywhere in the world, although some dark-sand beaches can glow blue at night due to external factors.

Blue Sand

In order to find actual naturally blue sand you’ll have to the country of Namibia in Africa where large deposits of blue sodalite can be found. These mineral plates are leftovers from mining which partially turned them into sand, which unlike regular sand was not a result of wind and water erosion. The blue sodalite at the site is also mixed with grey dolamite, giving the sand a brighter blue-grey appearance.

Other blue minerals can be artificially turned into blue sand, such as the rare lapis lazuli stone which is found in Northeastern Afghanistan.

Blue sand made of sodalite, found in the Kunene region of Namibia
Blue sand made of sodalite, found in the Kunene region of Namibia

Blue Sand Beaches

The closest thing that you can find to a blue sand beach is a phenomenon known as glowing beach which occurs in a few locations in the world where the luminiscent sand turns blue at night for a limited period of time due to the presence of microorganisms and under certain light conditions.

Below, a few locations where this phenomenon has been observed:

Mosquito Bay, Puerto Rico

Informally known as “Bioluminiscent Bay”, Mosquito Bay in Puerto Rico is located on the island of Vieques and famous for its bioluminescence which attracts tourists from all over the globe. The sand at this beach is a dark grey, almost black color, but it often starts glowing blue at night due to the presence of pyrodinium bahamense algae.

Vaadhoo Island, Maldives

Vaadhoo Island is a tiny, sparsely populated location in the Maldives famous for its glow-in-the-dark beach. Once again, this phenomenon occurs due to the presence of microorganisms called dinoflagellates which live in the water and start glowing whenever disturbed.

Glowing blue sand beach in Vaadhoo Island, Maldives.
Glowing blue sand beach in Vaadhoo Island, Maldives.

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