"Finding a field of stones made of pure sulfur is like finding ... that was chosen for being near the sulfur rocks, but larger and less brittle. The sample recovered by the drill is now stored ...

but the sulfur crystals were too small and brittle for the rover to sample for analysis. One major question is how the crystals formed. “There’s no reason to expect pure sulfur in this ...

Some of these are other minerals like Coal, Sulfur and Quartz ... Here we go: Coal And Pure Quartz – I am doing both of these on the same map. Coal, circled in red below, can generally be ...

Sulfur, in its pure form, forms only under very specific ... Curiosity continues its exploration of the Gediz Vallis Channel, taking samples, analyzing rocks, and sending critical data back ...