Celeste River
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Celeste River () is a river in
Tenorio Volcano National Park Tenorio Volcano National Park ( es, Parque Nacional Volcán Tenorio) is a National Park in the northern part of Costa Rica, which forms part of the Arenal Tempisque Conservation Area. The jewel of the National Park is the Tenorio Volcano, from whi ...
of
Costa Rica Costa Rica (, ; ; literally "Rich Coast"), officially the Republic of Costa Rica ( es, República de Costa Rica), is a country in the Central American region of North America, bordered by Nicaragua to the north, the Caribbean Sea to the no ...
. It is notable for its distinctive turquoise coloration. The Celeste River also borders several hot springs and has one large waterfall. It takes about an hour to hike to the waterfall from the park's entrance.


Origin of color

The source of the river's distinctive turquoise color is not due to a chemical species but to a physical phenomenon known as
Mie scattering The Mie solution to Maxwell's equations (also known as the Lorenz–Mie solution, the Lorenz–Mie–Debye solution or Mie scattering) describes the scattering of an electromagnetic plane wave by a homogeneous sphere. The solution takes the f ...
.Castellon, E.; et al. (2013). ''PLoS ONE'', vol. 8, p. 1-10
Article
/ref> Celeste River is fed by two colorless rivers, the Buenavista River and Sour Creek. Buenavista River carries a large concentration of
aluminosilicate Aluminosilicate minerals ( IMA symbol: Als) are minerals composed of aluminium, silicon, and oxygen, plus countercations. They are a major component of kaolin and other clay minerals. Andalusite, kyanite, and sillimanite are naturally occurr ...
particles with a small diameter. Sour Creek, as its name implies, has a high acidity due to volcanic activity. When these two streams mix to form Celeste River, the drop in pH causes the aluminosilicate particles to aggregate and enlarge to a diameter of about 566 nm. These suspended particles produce Mie scattering which gives the river a strong turquoise color.


See also

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Tourism in Costa Rica Tourism in Costa Rica has been one of the fastest growing economic sectors of the country and by 1995 became the largest foreign exchange earner. Since 1999, tourism has earned more foreign exchange than bananas, pineapples and coffee exports com ...


References


External links


Celeste River, where the sky flows down the mountain...
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Rio Celeste Aventuras
Rivers of Costa Rica Geography of Guanacaste Province {{CostaRica-river-stub