Oolitic Sands

Andros Ooids2015-03-18 09.36.14.jpg

Joulters Cay, Andros Island, Bahamas

   Oolites are tiny concentrically laminated spheres or rods. In waters super-saturated with calcium carbonate, the grains accrete or grow around a nucleus, a bit of shrimp feces or a tiny shell or rock fragment.
   Oolites accrete or grow larger as they are agitated by the waves, tides or currents. They form on the warm Bahamas Platform, in Great Salt Lake (a saline lake), and elsewhere.
Stansbury Island
Stansbury Island

Great Salt Lake, Utah

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Joulters Caye
Joulters Caye

off Andros Island, Bahamas

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Playa Mar de Cristal
Playa Mar de Cristal

Islas Menoras, Spain

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Windblow Berm
Windblow Berm

Qater

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Antelope Island
Antelope Island

Great Salt Lake, Utah

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Further information on ooids may be found at Simm Sepp's Blog, Sand Atlas