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

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 Source: http://www.planetary.org/multimedia/space-images/mars/20131014_mars_opal.html

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Tags: Science - Earth, Space & Nature, Space shots!, SPACE!,