NaNo - Made it!
Here is a wordle of the story so far:

And here are the words that got me there.
<The yellow is a deposit of raw trisiunium nitrate, the blue is chlorimate. They can be reacted to make fuel.>
“How does that help?” Skylar asked, as a vague memory of the chemistry she had had to study as a second year cadet, stirred in her mind.
<The engines can be run backwards,> MRGN reminded her.
Skylar blinked, pushing over to look at the map. “I can use the burn chamber as a reaction chamber,” Skylar said, remembering the process. “We can make our own fuel.”
MRGN zoomed in on a region of the map. There was a blotch of blue overlapping with a blotch of yellow to make a region of green. <There is a place where both minerals can be found.>
“We can make our own fuel,” Skylar said. “We can go home.”