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Martian Crater Rich in Opal

Martian Crater Rich in Opal

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NASA/JPL/University of Arizona

Martian Crater Rich in Opal
The CRISM imaging spectrometer on board the Mars Reconnaissance Orbiter identified the minerals present in this crater south of Baldet Crater. Among them: a form of hydrated silica better known as the gemstone opal. The colors of the landscape don't appear as they would to the human eye, because instead of the usual red, green, and blue components of photographs, this image comes from infrared, red, and blue/green sensors.

Most NASA images are in the public domain. Reuse of this image is governed by NASA's image use policy.

Original image data dated on or about April 3, 2007

Explore related images: spectroscopy, mineralogy and petrology, pretty pictures, Mars, Mars Reconnaissance Orbiter

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