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Martian Ooids of 0.5 mm in Diameter

Wednesday, October 12, 2016 1:24
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Red arrows point to some of the spherical ooids of roughly 0.5 mm. The photo was taken on sol 1184 (December 6, 2015) at High Dune, Gale Crater, Mars. 
Original description by Emily Lakdawalla:
“This closeup of High Dune was taken by MAHLI, the camera on the end of Curiosity’s arm, on sol 1184 (December 6, 2015). Unlike previously investigated sand ripples, this active dune lacks fine sand and dust; the field of view is filled with sand grains of nearly uniform size of roughly 0.5 millimeters. However, the grains have a wide variety of color.
NASA / JPL / MSSS / Emily Lakdawalla”

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