Gusev Crater
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Q. Do you know which mineral the soil of Mars is rich in?
: A. Deposits of nearly pure silica discovered by the Mars Exploration Rover Spirit in Gusev Crater formed when volcanic steam or hot water (or maybe...... more
: A. Deposits of nearly pure silica discovered by the Mars Exploration Rover Spirit in Gusev Crater formed when volcanic steam or hot water (or maybe...... more
http://qna.rediff.com/questions-and-answers/do-you-know-which-mineral-the-soil-of-mars-is-rich-in//answers/11795188
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