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  This rock is called "Berry Bowl" and I'm sure you can figure out why.  The spherical grains which were named "blueberries" are really these things found on Earth called concretions.  Concretions are nodular or irregularly compact accumulations of minerals that grow in sedimentary rocks.  They form from by some chemical process were minerals are precipitated from groundwater flow.  These berries were examined and revealed that they contained hematite, a mineral that concentrates by the flow of water.  However, the composition of the rock and dust differed greatly from the berries.

 

 
More Sedimentary Pictures Layers in Holden Crater Cool Looking Stuff
More delicious blueberries Odd looking Beds Massive Bedding

 

Back to Geologic Features for Water on Mars

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