CRISM: Phyllosilicate minerals near Mawrth Vallis

CRISM_FeaturedImages_Compressed_FRT3BFBThis image, which covers a site located slightly west of the Mawrth Vallis outflow channel, shows aluminum-containing minerals called phyllosilicates in a cyan color and iron-magnesium-containing phyllosilicates in a red/magenta color. Phyllosilicates are clay and clay-like minerals formed by chemical reactions with liquid water. Their microscopic crystal form in very thin stacked layers and are also called sheet silicates. In the perspective…. [More at link]

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