This data product is a global olivine spectral parameter map of Mars based on reflectance data acquired by the Mars Express OMEGA hyperspectral camera from January 2004 to August 2010. Olivine spectral parameter (OSP1) detects Mg-rich and/or small grain size and/or low abundance olivine. Olivine spectral parameter (OSP2) is sensitive to olivine with high iron content and/or large grain size and/or high abundance. Olivine spectral parameter (OSP3) determines the full band depth at 1.36 micrometer relative to a continuum. It preferentially detects olivine with a large Fe content and/or with large grain size and/or with high abundance. Map resolution is 44 pixels/degree (ppd) (1.48 km/pixel at equator).