gray hematite found Coal layer in Mars strata found by robots

Gray hematite which is mostly a water sediment deposit is found on
much of Mars (funny how Mars could not be Mar but has to have an "s"
at the end of it-- I suppose like Paris)

Anyway, I wonder if this robot on Mars can detect tiny amounts of coal
dust that was scattered by a bolide impact over much of Mars?

I wonder if the Gray Hematite is a nice outline of where the Mars
Oceans used to exist when Mars was in a Earth orbit around the Sun and
when Earth was in Venus's place which lasted for about 2 billion
years.

I do not know how capable is this robot in detection of coal powder or
coal specks or coal signatures. Perhaps if these robots are so capable
of detection of gray-hematite then they are capable of detecting coal
dust.

Now, is there a hematite mineral that has coal impurities? Is there a
sedimentary rock that can have coal dust impurities?

Other than the robots luckily visiting a site where a lump of coal or
a coal seam is exposed, the best chance of running into coal is from
the meteor bolide impacts of coal seams that thrust the fine powder
over much of the surface.

Archimedes Plutonium
whole entire Universe is just one big atom where dots
of the electron-dot-cloud are galaxies