PIA16444: 'Homestake' Vein on 'Cape York,' Color Enhanced
 Target Name:  Mars
 Is a satellite of:  Sol (our sun)
 Mission:  Mars Exploration Rover (MER)
 Spacecraft:  Opportunity
 Instrument:  Panoramic Camera
 Product Size:  2233 x 1330 pixels (w x h)
 Produced By:  Cornell University 
 Full-Res TIFF:  PIA16444.tif (8.913 MB)
 Full-Res JPEG:  PIA16444.jpg (204.2 kB)

Click on the image above to download a moderately sized image in JPEG format (possibly reduced in size from original)

Original Caption Released with Image:

NASA's Mars Exploration Rover Opportunity inspected this mineral vein, called "Homestake," in November 2011 at the northern end of the "Cape York" section of Endeavour Crater's western rim. The vein is about the width of a thumb and about 18 inches (45 centimeters) long, extending beyond the portion shown here.

This view, showing subtle linear texture on the bright vein, combines close-up detail recorded by Opportunity's microscopic imager (MI) and enhanced color information from Opportunity's panoramic camera (Pancam). The area covered in this view spans about 2 inches (5 centimeters) across. The MI exposures used in this view were taken while the vein was fully shadowed by the rover during the mission's 2,766th Martian day, or sol (Nov. 4, 2011).

A Pancam view encompassing more of the Homestake vein is at PIA15033. Researchers using the alpha particle X-ray spectrometer (APXS) on Opportunity determined that this vein is rich in calcium and sulfur, possibly the calcium-sulfate mineral gypsum.

Image Credit:
NASA/JPL-Caltech/USGS/Cornell Univ./Arizona State Univ.

Image Addition Date: