23 June 2016
Newly found mineral on Mars hints at explosive volcanism
... location named "Buckskin,” the results revealed a surprising constituent; significant amounts of a silica mineral called tridymite. Tridymite is generally associated with silicic volcanism, an explosive type of volcanism that on Earth can cover vast...
November 2017
Roving the red planet
... determined by the rover’s CheMin X-Ray diffractometer, is the mineral tridymite. A team led by Dr Richard Morris at the NASA Johnson ...Space Center concluded that the presence of tridymite was evidence of eruptions from volcanoes like Earth’s...