Explosive volcanism on Mars deposited rare mineral into Gale Crater, NASA rover finds

Explosive volcanism on Mars deposited rare mineral into Gale Crater, NASA rover finds
A new scenario suggests how a rare form of quartz came to be found in a dried lake bed by the Curiosity rover. The mysterious discovery of a …

* View the article originally published here. ** More curations: Al Cannistra at San Antonio ONE here.