Explosive volcanism on Mars deposited rare mineral into crater

The mysterious discovery of a concentrated chunk of rare mineral quartz in the Gale Crater region of Mars by the Curiosity rover in 2016 has finally been explained by researchers.

A team of planetary scientists from Rice University, NASA’s Johnson Space Center, and the California Institute of Technology (CalTech) believe that the concentrated chunk of tridymite was spewed into the Gale Crater by a volcano when it was still filled with water as long as 1 billion years ago.

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