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===Minerals in Dust===
A MossbauerMössbauer spectrum was made of the dust that gathered on Opportunity’s capture magnet. The results suggested that the magnetic component of the dust was titanomagnetite, rather than just plain [[magnetite]], as was once thought. A small amount of [[olivine]] was also detected which was interpreted as indicating a long arid period on the planet. On the other hand, a small amount of hematite that was present meant that there may have been liquid water for a short time in the early history of the planet.<ref>Goetz, W., et al. 2005. Indication of drier periods on Mars from the chemistry and mineralogy of atmospheric dust. Nature: 436.62-65.</ref>
Because the [[Rock Abrasion Tool]] (RAT) found it easy to grind into the bedrocks, it is thought that the rocks are much softer than the rocks at Gusev crater.
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